[SPARK-21373][CORE] Update Jetty to 9.3.20.v20170531
[SPARK-21373][CORE] Update Jetty to 9.3.20.v20170531

## What changes were proposed in this pull request?

This PR upgrades jetty to the latest version 9.3.20.v20170531. The version includes the fix of CVE-2017-9735.

Here are links to descriptions for CVE-2017-9735.
* https://nvd.nist.gov/vuln/detail/CVE-2017-9735
* https://github.com/eclipse/jetty.project/issues/1556

Here is [a release note](https://github.com/eclipse/jetty.project/blob/jetty-9.3.x/VERSION.txt) for the latest jetty

## How was this patch tested?

tested by existing test suites

Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com>

Closes #18601 from kiszk/SPARK-21373.

tengpeng/spark,michalsenkyr/spark,szhem/spark,markhamstra/spark,facaiy/spark,dongjoon-hyun/spark,facaiy/spark,chuckchen/spark,xflin/spark,shaneknapp/spark,kevinyu98/spark,taroplus/spark,minixalpha/spark,SHASHANKB/spark,ericvandenbergfb/spark,debugger87/spark,zhouyejoe/spark,adrian-ionescu/apache-spark,LantaoJin/spark,UndeadBaneGitHub/spark,matthewfranglen/spark,wzhfy/spark,lvdongr/spark,wzhfy/spark,ajaysaini725/spark,guoxiaolongzte/spark,minixalpha/spark,hvanhovell/spark,xflin/spark,rednaxelafx/apache-spark,HyukjinKwon/spark,ddna1021/spark,bdrillard/spark,wangmiao1981/spark,zzcclp/spark,ioana-delaney/spark,michalsenkyr/spark,ericvandenbergfb/spark,michalsenkyr/spark,JoshRosen/spark,ptkool/spark,akopich/spark,saltstar/spark,ueshin/apache-spark,zzcclp/spark,cin/spark,techaddict/spark,1haodian/spark,rikima/spark,dongjoon-hyun/spark,actuaryzhang/spark,WeichenXu123/spark,akopich/spark,apache/spark,esi-mineset/spark,aray/spark,darionyaphet/spark,tengpeng/spark,hhbyyh/spark,JoshRosen/spark,saltstar/spark,SHASHANKB/spark,chuckchen/spark,HyukjinKwon/spark,facaiy/spark,wangmiao1981/spark,ConeyLiu/spark,eyalfa/spark,adrian-ionescu/apache-spark,guoxiaolongzte/spark,pgandhi999/spark,zhouyejoe/spark,wangmiao1981/spark,cin/spark,rezasafi/spark,debugger87/spark,markhamstra/spark,hvanhovell/spark,witgo/spark,hhbyyh/spark,goldmedal/spark,ddna1021/spark,bdrillard/spark,ddna1021/spark,kiszk/spark,rekhajoshm/spark,wangmiao1981/spark,sahilTakiar/spark,witgo/spark,ueshin/apache-spark,ron8hu/spark,xuanyuanking/spark,zero323/spark,highfei2011/spark,BryanCutler/spark,szhem/spark,1haodian/spark,jiangxb1987/spark,gengliangwang/spark,darionyaphet/spark,nchammas/spark,bdrillard/spark,sahilTakiar/spark,zhouyejoe/spark,kevinyu98/spark,tengpeng/spark,rikima/spark,akopich/spark,ajaysaini725/spark,skonto/spark,lvdongr/spark,guoxiaolongzte/spark,mike0sv/spark,ahnqirage/spark,kiszk/spark,shuangshuangwang/spark,dongjoon-hyun/spark,gengliangwang/spark,shubhamchopra/spark,jkbradley/spark,maropu/spark,janewangfb/spark,chuckchen/spark,WeichenXu123/spark,jiangxb1987/spark,Aegeaner/spark,nlalevee/spark,vinodkc/spark,rezasafi/spark,ajaysaini725/spark,ahnqirage/spark,darionyaphet/spark,ConeyLiu/spark,kiszk/spark,techaddict/spark,joseph-torres/spark,facaiy/spark,nlalevee/spark,wzhfy/spark,HyukjinKwon/spark,janewangfb/spark,sureshthalamati/spark,ueshin/apache-spark,jiangxb1987/spark,Aegeaner/spark,lvdongr/spark,apache/spark,caneGuy/spark,ueshin/apache-spark,yanboliang/spark,chuckchen/spark,alunarbeach/spark,spark-test/spark,pgandhi999/spark,jiangxb1987/spark,stanzhai/spark,UndeadBaneGitHub/spark,brad-kaiser/spark,WeichenXu123/spark,aray/spark,BryanCutler/spark,adrian-ionescu/apache-spark,eyalfa/spark,maropu/spark,bravo-zhang/spark,tengpeng/spark,nlalevee/spark,someorz/spark,ahnqirage/spark,highfei2011/spark,mike0sv/spark,dbtsai/spark,guoxiaolongzte/spark,ptkool/spark,tengpeng/spark,yanboliang/spark,tejasapatil/spark,wangmiao1981/spark,minixalpha/spark,JoshRosen/spark,LantaoJin/spark,ajaysaini725/spark,rekhajoshm/spark,icexelloss/spark,srowen/spark,skonto/spark,stanzhai/spark,adrian-ionescu/apache-spark,Aegeaner/spark,icexelloss/spark,jiangxb1987/spark,WindCanDie/spark,cloud-fan/spark,ddna1021/spark,shuangshuangwang/spark,skonto/spark,icexelloss/spark,rezasafi/spark,bravo-zhang/spark,techaddict/spark,kiszk/spark,ConeyLiu/spark,cloud-fan/spark,holdenk/spark,rikima/spark,skonto/spark,ahnqirage/spark,mdespriee/spark,ddna1021/spark,alunarbeach/spark,mahak/spark,debugger87/spark,adrian-ionescu/apache-spark,dbtsai/spark,someorz/spark,zero323/spark,rekhajoshm/spark,eyalfa/spark,shubhamchopra/spark,janewangfb/spark,lxsmnv/spark,bdrillard/spark,milliman/spark,nchammas/spark,ueshin/apache-spark,gengliangwang/spark,nchammas/spark,joseph-torres/spark,stanzhai/spark,aosagie/spark,shubhamchopra/spark,highfei2011/spark,hvanhovell/spark,guoxiaolongzte/spark,WindCanDie/spark,michalsenkyr/spark,witgo/spark,markhamstra/spark,shaneknapp/spark,actuaryzhang/spark,facaiy/spark,rikima/spark,taroplus/spark,hhbyyh/spark,WindCanDie/spark,wangyum/spark,goldmedal/spark,mdespriee/spark,apache/spark,holdenk/spark,kevinyu98/spark,srowen/spark,skonto/spark,michalsenkyr/spark,saltstar/spark,bravo-zhang/spark,BryanCutler/spark,darionyaphet/spark,nlalevee/spark,holdenk/spark,gengliangwang/spark,Aegeaner/spark,saltstar/spark,ioana-delaney/spark,eyalfa/spark,rednaxelafx/apache-spark,lvdongr/spark,wzhfy/spark,joseph-torres/spark,caneGuy/spark,taroplus/spark,sureshthalamati/spark,ericvandenbergfb/spark,cloud-fan/spark,zuotingbing/spark,mahak/spark,esi-mineset/spark,JoshRosen/spark,yanboliang/spark,icexelloss/spark,taroplus/spark,xflin/spark,rekhajoshm/spark,techaddict/spark,nchammas/spark,UndeadBaneGitHub/spark,SHASHANKB/spark,sahilTakiar/spark,witgo/spark,ron8hu/spark,jiangxb1987/spark,markhamstra/spark,byakuinss/spark,wangmiao1981/spark,pgandhi999/spark,aosagie/spark,vinodkc/spark,SHASHANKB/spark,tengpeng/spark,joseph-torres/spark,caneGuy/spark,someorz/spark,srowen/spark,joseph-torres/spark,gengliangwang/spark,goldmedal/spark,zhouyejoe/spark,sahilTakiar/spark,mahak/spark,ptkool/spark,srowen/spark,WindCanDie/spark,bravo-zhang/spark,cin/spark,xflin/spark,adrian-ionescu/apache-spark,holdenk/spark,mike0sv/spark,zuotingbing/spark,sureshthalamati/spark,janewangfb/spark,ericvandenbergfb/spark,ajaysaini725/spark,actuaryzhang/spark,dongjoon-hyun/spark,narahari92/spark,minixalpha/spark,alunarbeach/spark,someorz/spark,WeichenXu123/spark,markhamstra/spark,caneGuy/spark,UndeadBaneGitHub/spark,cloud-fan/spark,xuanyuanking/spark,1haodian/spark,hvanhovell/spark,mahak/spark,alunarbeach/spark,maropu/spark,vinodkc/spark,lxsmnv/spark,xflin/spark,dbtsai/spark,JoshRosen/spark,akopich/spark,shuangshuangwang/spark,techaddict/spark,ptkool/spark,shaneknapp/spark,esi-mineset/spark,dbtsai/spark,brad-kaiser/spark,kiszk/spark,kevinyu98/spark,LantaoJin/spark,highfei2011/spark,SHASHANKB/spark,bravo-zhang/spark,HyukjinKwon/spark,xuanyuanking/spark,zzcclp/spark,aosagie/spark,ConeyLiu/spark,mdespriee/spark,narahari92/spark,byakuinss/spark,milliman/spark,narahari92/spark,mike0sv/spark,nlalevee/spark,wzhfy/spark,JoshRosen/spark,markhamstra/spark,ddna1021/spark,milliman/spark,ron8hu/spark,aosagie/spark,minixalpha/spark,esi-mineset/spark,zuotingbing/spark,debugger87/spark,kiszk/spark,1haodian/spark,sahilTakiar/spark,narahari92/spark,yanboliang/spark,szhem/spark,spark-test/spark,sureshthalamati/spark,milliman/spark,brad-kaiser/spark,rekhajoshm/spark,kiszk/spark,tejasapatil/spark,caneGuy/spark,yanboliang/spark,zuotingbing/spark,darionyaphet/spark,aray/spark,skonto/spark,zero323/spark,alunarbeach/spark,wangyum/spark,pgandhi999/spark,tejasapatil/spark,actuaryzhang/spark,minixalpha/spark,ron8hu/spark,kevinyu98/spark,zero323/spark,bdrillard/spark,WeichenXu123/spark,guoxiaolongzte/spark,witgo/spark,vinodkc/spark,rezasafi/spark,jkbradley/spark,brad-kaiser/spark,byakuinss/spark,cin/spark,mahak/spark,zuotingbing/spark,holdenk/spark,pgandhi999/spark,BryanCutler/spark,sahilTakiar/spark,LantaoJin/spark,apache/spark,mdespriee/spark,adrian-ionescu/apache-spark,goldmedal/spark,xuanyuanking/spark,saltstar/spark,LantaoJin/spark,zhouyejoe/spark,spark-test/spark,pgandhi999/spark,rednaxelafx/apache-spark,saltstar/spark,michalsenkyr/spark,vinodkc/spark,darionyaphet/spark,hhbyyh/spark,ericvandenbergfb/spark,LantaoJin/spark,ahnqirage/spark,UndeadBaneGitHub/spark,wangmiao1981/spark,xuanyuanking/spark,ioana-delaney/spark,eyalfa/spark,ptkool/spark,narahari92/spark,HyukjinKwon/spark,joseph-torres/spark,someorz/spark,shaneknapp/spark,mdespriee/spark,lxsmnv/spark,esi-mineset/spark,guoxiaolongzte/spark,BryanCutler/spark,sahilTakiar/spark,zzcclp/spark,shubhamchopra/spark,WeichenXu123/spark,UndeadBaneGitHub/spark,actuaryzhang/spark,lxsmnv/spark,shaneknapp/spark,tengpeng/spark,ioana-delaney/spark,apache/spark,wzhfy/spark,aosagie/spark,gengliangwang/spark,actuaryzhang/spark,vinodkc/spark,xflin/spark,wzhfy/spark,apache/spark,aray/spark,rednaxelafx/apache-spark,michalsenkyr/spark,mike0sv/spark,holdenk/spark,dongjoon-hyun/spark,tejasapatil/spark,apache/spark,ioana-delaney/spark,rednaxelafx/apache-spark,shubhamchopra/spark,shuangshuangwang/spark,ioana-delaney/spark,esi-mineset/spark,goldmedal/spark,sureshthalamati/spark,szhem/spark,rikima/spark,aosagie/spark,WeichenXu123/spark,shaneknapp/spark,lvdongr/spark,ron8hu/spark,zuotingbing/spark,zzcclp/spark,wangyum/spark,zzcclp/spark,saltstar/spark,nchammas/spark,ptkool/spark,esi-mineset/spark,BryanCutler/spark,ericvandenbergfb/spark,narahari92/spark,srowen/spark,HyukjinKwon/spark,cin/spark,JoshRosen/spark,debugger87/spark,mdespriee/spark,spark-test/spark,ajaysaini725/spark,alunarbeach/spark,milliman/spark,janewangfb/spark,ConeyLiu/spark,zhouyejoe/spark,jkbradley/spark,akopich/spark,zero323/spark,caneGuy/spark,tejasapatil/spark,ueshin/apache-spark,yanboliang/spark,sureshthalamati/spark,goldmedal/spark,ptkool/spark,hhbyyh/spark,kevinyu98/spark,xflin/spark,nlalevee/spark,nchammas/spark,LantaoJin/spark,szhem/spark,UndeadBaneGitHub/spark,srowen/spark,ConeyLiu/spark,zhouyejoe/spark,vinodkc/spark,wangyum/spark,cloud-fan/spark,maropu/spark,cloud-fan/spark,rikima/spark,shaneknapp/spark,aray/spark,chuckchen/spark,aray/spark,stanzhai/spark,ajaysaini725/spark,taroplus/spark,szhem/spark,rezasafi/spark,techaddict/spark,spark-test/spark,bdrillard/spark,taroplus/spark,akopich/spark,chuckchen/spark,rikima/spark,dbtsai/spark,icexelloss/spark,eyalfa/spark,rednaxelafx/apache-spark,hvanhovell/spark,mike0sv/spark,wangyum/spark,holdenk/spark,stanzhai/spark,dongjoon-hyun/spark,rekhajoshm/spark,shuangshuangwang/spark,Aegeaner/spark,nlalevee/spark,WindCanDie/spark,jkbradley/spark,1haodian/spark,sureshthalamati/spark,hvanhovell/spark,tejasapatil/spark,maropu/spark,narahari92/spark,bravo-zhang/spark,lvdongr/spark,stanzhai/spark,srowen/spark,aray/spark,mdespriee/spark,yanboliang/spark,cin/spark,Aegeaner/spark,stanzhai/spark,janewangfb/spark,icexelloss/spark,bdrillard/spark,dbtsai/spark,ConeyLiu/spark,brad-kaiser/spark,jkbradley/spark,pgandhi999/spark,byakuinss/spark,zero323/spark,ericvandenbergfb/spark,shubhamchopra/spark,someorz/spark,markhamstra/spark,BryanCutler/spark,rednaxelafx/apache-spark,facaiy/spark,byakuinss/spark,ahnqirage/spark,HyukjinKwon/spark,WindCanDie/spark,ueshin/apache-spark,akopich/spark,wangyum/spark,mahak/spark,zzcclp/spark,hvanhovell/spark,SHASHANKB/spark,xuanyuanking/spark,chuckchen/spark,1haodian/spark,icexelloss/spark,alunarbeach/spark,debugger87/spark,someorz/spark,xuanyuanking/spark,rezasafi/spark,bravo-zhang/spark,jiangxb1987/spark,rekhajoshm/spark,milliman/spark,spark-test/spark,tejasapatil/spark,maropu/spark,byakuinss/spark,janewangfb/spark,brad-kaiser/spark,hhbyyh/spark,dongjoon-hyun/spark,shubhamchopra/spark,jkbradley/spark,cloud-fan/spark,facaiy/spark,mahak/spark,eyalfa/spark,ahnqirage/spark,Aegeaner/spark,ioana-delaney/spark,WindCanDie/spark,ron8hu/spark,lxsmnv/spark,mike0sv/spark,1haodian/spark,wangyum/spark,hhbyyh/spark,highfei2011/spark,goldmedal/spark,rezasafi/spark,witgo/spark,debugger87/spark,lxsmnv/spark,SHASHANKB/spark,minixalpha/spark,maropu/spark,milliman/spark,aosagie/spark,lxsmnv/spark,jkbradley/spark,szhem/spark,shuangshuangwang/spark,caneGuy/spark,nchammas/spark,dbtsai/spark,shuangshuangwang/spark,highfei2011/spark,cin/spark,actuaryzhang/spark,spark-test/spark,byakuinss/spark,skonto/spark,gengliangwang/spark,taroplus/spark,lvdongr/spark,ddna1021/spark,techaddict/spark,ron8hu/spark,darionyaphet/spark,zuotingbing/spark,brad-kaiser/spark,zero323/spark,joseph-torres/spark,witgo/spark,kevinyu98/spark,highfei2011/spark