[SPARK-33239][INFRA] Use pre-built image at GitHub Action SparkR job
[SPARK-33239][INFRA] Use pre-built image at GitHub Action SparkR job

### What changes were proposed in this pull request?

This PR aims to use a pre-built image for Github Action SparkR job.

### Why are the changes needed?

This will reduce the execution time and the flakiness.

**BEFORE (21 minutes 39 seconds)**
![Screen Shot 2020-10-16 at 1 24 43 PM](https://user-images.githubusercontent.com/9700541/96305593-fbeada80-0fb2-11eb-9b8e-86d8abaad9ef.png)

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

Pass the GitHub Action `sparkr` job in this PR.

Closes #30066 from dongjoon-hyun/SPARKR.

Authored-by: Dongjoon Hyun <9b02cb7e37158797a8e22c559f7c5f5ecd28ea57@apple.com>
Signed-off-by: Dongjoon Hyun <9b02cb7e37158797a8e22c559f7c5f5ecd28ea57@apple.com>

maropu/spark,HyukjinKwon/spark,srowen/spark,milliman/spark,hvanhovell/spark,taroplus/spark,shaneknapp/spark,holdenk/spark,zzcclp/spark,apache/spark,JoshRosen/spark,shuangshuangwang/spark,shuangshuangwang/spark,apache/spark,holdenk/spark,WeichenXu123/spark,shaneknapp/spark,wangyum/spark,maropu/spark,wangmiao1981/spark,nchammas/spark,witgo/spark,chuckchen/spark,mahak/spark,taroplus/spark,vinodkc/spark,srowen/spark,taroplus/spark,nchammas/spark,rednaxelafx/apache-spark,BryanCutler/spark,chuckchen/spark,zero323/spark,nchammas/spark,wangyum/spark,cloud-fan/spark,hvanhovell/spark,holdenk/spark,ueshin/apache-spark,shaneknapp/spark,BryanCutler/spark,zero323/spark,zzcclp/spark,apache/spark,mahak/spark,chuckchen/spark,cloud-fan/spark,rednaxelafx/apache-spark,BryanCutler/spark,JoshRosen/spark,chuckchen/spark,hvanhovell/spark,WeichenXu123/spark,nchammas/spark,ueshin/apache-spark,dongjoon-hyun/spark,nchammas/spark,HyukjinKwon/spark,zero323/spark,srowen/spark,ueshin/apache-spark,wangmiao1981/spark,jiangxb1987/spark,apache/spark,dongjoon-hyun/spark,shaneknapp/spark,ueshin/apache-spark,mahak/spark,apache/spark,chuckchen/spark,JoshRosen/spark,nchammas/spark,wangyum/spark,gengliangwang/spark,milliman/spark,hvanhovell/spark,vinodkc/spark,shaneknapp/spark,zzcclp/spark,HyukjinKwon/spark,wangyum/spark,chuckchen/spark,jiangxb1987/spark,srowen/spark,mahak/spark,maropu/spark,apache/spark,maropu/spark,rednaxelafx/apache-spark,taroplus/spark,JoshRosen/spark,zero323/spark,jiangxb1987/spark,xuanyuanking/spark,BryanCutler/spark,chuckchen/spark,witgo/spark,hvanhovell/spark,shuangshuangwang/spark,HyukjinKwon/spark,dongjoon-hyun/spark,witgo/spark,dongjoon-hyun/spark,vinodkc/spark,nchammas/spark,witgo/spark,HyukjinKwon/spark,gengliangwang/spark,rednaxelafx/apache-spark,wangmiao1981/spark,maropu/spark,jiangxb1987/spark,gengliangwang/spark,holdenk/spark,HyukjinKwon/spark,vinodkc/spark,milliman/spark,cloud-fan/spark,xuanyuanking/spark,hvanhovell/spark,wangmiao1981/spark,holdenk/spark,zzcclp/spark,xuanyuanking/spark,zero323/spark,ueshin/apache-spark,mahak/spark,gengliangwang/spark,shaneknapp/spark,taroplus/spark,dongjoon-hyun/spark,gengliangwang/spark,WeichenXu123/spark,witgo/spark,JoshRosen/spark,taroplus/spark,jiangxb1987/spark,zzcclp/spark,jiangxb1987/spark,gengliangwang/spark,zzcclp/spark,srowen/spark,HyukjinKwon/spark,shuangshuangwang/spark,WeichenXu123/spark,cloud-fan/spark,maropu/spark,jiangxb1987/spark,WeichenXu123/spark,milliman/spark,hvanhovell/spark,vinodkc/spark,apache/spark,wangyum/spark,JoshRosen/spark,rednaxelafx/apache-spark,wangmiao1981/spark,JoshRosen/spark,ueshin/apache-spark,shuangshuangwang/spark,wangyum/spark,dongjoon-hyun/spark,zero323/spark,wangyum/spark,BryanCutler/spark,mahak/spark,BryanCutler/spark,WeichenXu123/spark,shaneknapp/spark,witgo/spark,BryanCutler/spark,WeichenXu123/spark,xuanyuanking/spark,holdenk/spark,xuanyuanking/spark,holdenk/spark,zzcclp/spark,ueshin/apache-spark,zero323/spark,maropu/spark,mahak/spark,gengliangwang/spark,cloud-fan/spark,wangmiao1981/spark,xuanyuanking/spark,taroplus/spark,milliman/spark,milliman/spark,vinodkc/spark,shuangshuangwang/spark,xuanyuanking/spark,cloud-fan/spark,cloud-fan/spark,wangmiao1981/spark,witgo/spark,milliman/spark,srowen/spark,vinodkc/spark,rednaxelafx/apache-spark,rednaxelafx/apache-spark,dongjoon-hyun/spark,srowen/spark,shuangshuangwang/spark