submit queue: Do not update 'status' if PR already in queue
submit queue: Do not update 'status' if PR already in queue

If a PR is on the merge queue and the munger runs again, it will
(likely) determine that the PR needs to be added to the queue. The
problem is that we also put this determination in the history. So we log
every 10 minutes that a PR is being 'enqueued' even though it was always
on the queue. This makes the log less useful.

gmarek/contrib,lavalamp/contrib,xialonglee/contrib,gouyang/contrib,aledbf/contrib,tmc/contrib,rmmh/kubernetes-contrib,aknuds1/contrib,tmc/contrib,endocode/contrib,danehans/contrib,adamschaub/contrib,piosz/contrib,verb/contrib,grodrigues3/contrib,luxas/contrib,krzyzacy/contrib,chiradeep/contrib,aledbf/contrib,spxtr/contrib,stephenrlouie/contrib,stephenrlouie/contrib,kokhang/contrib,cgwalters/kubernetes-contrib,xialonglee/contrib,rmmh/kubernetes-contrib,jlebon/contrib,aledbf/contrib,caesarxuchao/contrib,vishpat/contrib,simonswine/kubernetes-contrib,krousey/contrib,x13n/contrib,jlebon/contrib,jasonbishop/contrib,Wattpad/kubernetes-contrib,gmarek/contrib,k8s-packages-power/contrib,kow3ns/contrib,chiradeep/contrib,piosz/contrib,Arano-kai/kubernetes-contrib,kokhang/contrib,eastbanctech/kubernetes-contrib,foxish/contrib,lewislyou/contrib,jcmoraisjr/k8s-contrib,andrew-j-price/contrib,jlebon/contrib,jfchevrette/kubernetes-contrib,widgetpl/contrib,jasonbishop/contrib,verb/contrib,moul/contrib,piosz/contrib,grodrigues3/contrib,danehans/contrib,gouyang/contrib,aknuds1/contrib,chiradeep/contrib,aledbf/contrib,freehan/contrib,devlinmr/contrib,fabioy/contrib,ingvagabund/contrib,jasonbishop/contrib,freehan/contrib,k8s-packages-power/contrib,danehans/contrib,fabioy/contrib,foxish/contrib,stephenrlouie/contrib,eastbanctech/kubernetes-contrib,hongchaodeng/contrib,aknuds1/contrib,hongchaodeng/contrib,Arano-kai/kubernetes-contrib,Q-Lee/contrib,lavalamp/contrib,aledbf/contrib,stephenrlouie/contrib,tmc/contrib,upmc-enterprises/contrib,jasonbishop/contrib,gouyang/contrib,kskalski/contrib,endocode/contrib,Pensu/contrib,lavalamp/contrib,gemini-project/contrib,Q-Lee/contrib,lavalamp/contrib,cdemers/contrib,danushkaf/contrib,fabioy/contrib,micheleorsi/contrib,cdemers/contrib,jasonbishop/contrib,jdavis7257/contrib,xialonglee/contrib,Q-Lee/contrib,simonswine/kubernetes-contrib,jdavis7257/contrib,jcmoraisjr/k8s-contrib,eastbanctech/kubernetes-contrib,krousey/contrib,morganwu277/contrib,piosz/contrib,fabioy/contrib,rmmh/kubernetes-contrib,endocode/contrib,olark/kubernetes-contrib,k8s-packages-power/contrib,cdemers/contrib,krzyzacy/contrib,aknuds1/contrib,kow3ns/contrib,rchicoli/kubernetes-contrib,freehan/contrib,andrew-j-price/contrib,fabioy/contrib,andrew-j-price/contrib,spxtr/contrib,foxish/contrib,olark/kubernetes-contrib,jcmoraisjr/k8s-contrib,endocode/contrib,jfchevrette/contrib,pwittrock/contrib,upmc-enterprises/contrib,atosatto/kubernetes-contrib,Q-Lee/contrib,vishpat/contrib,verb/contrib,ingvagabund/contrib,ixdy/contrib,cgwalters/kubernetes-contrib,jfchevrette/kubernetes-contrib,kskalski/contrib,widgetpl/contrib,gouyang/contrib,jlebon/contrib,girishkalele/contrib,jasonbrooks/contrib,simonswine/kubernetes-contrib,davidopp/contrib,morganwu277/contrib,jlebon/contrib,ixdy/kubernetes-contrib,k8s-packages-power/contrib,spxtr/contrib,hongchaodeng/contrib,mikedanese/contrib,hongchaodeng/contrib,thockin/contrib,krousey/contrib,Arano-kai/kubernetes-contrib,marketlogicsoftware/contrib,lewislyou/contrib,jfchevrette/contrib,lewislyou/contrib,luxas/contrib,Arano-kai/kubernetes-contrib,eparis/contrib,eparis/contrib,gemini-project/contrib,jdavis7257/contrib,Wattpad/kubernetes-contrib,vishpat/contrib,remoe/contrib,fcvarela/contrib,aknuds1/contrib,jdavis7257/contrib,simonswine/kubernetes-contrib,fabioy/contrib,fcvarela/contrib,olark/kubernetes-contrib,adamschaub/contrib,cgwalters/kubernetes-contrib,fcvarela/contrib,mikedanese/contrib,x13n/contrib,remoe/contrib,vishpat/contrib,eparis/contrib,cgwalters/kubernetes-contrib,kskalski/contrib,gemini-project/contrib,x13n/contrib,jdavis7257/contrib,thockin/contrib,ingvagabund/contrib,jojimt/contrib,jojimt/contrib,kskalski/contrib,Q-Lee/contrib,x13n/contrib,mikedanese/contrib,spxtr/contrib,jcmoraisjr/k8s-contrib,chiradeep/contrib,lavalamp/contrib,eparis/contrib,micheleorsi/contrib,eparis/contrib,chiradeep/contrib,timstclair/kube-contrib,lewislyou/contrib,endocode/contrib,jasonbrooks/contrib,micheleorsi/contrib,Wattpad/kubernetes-contrib,ingvagabund/contrib,caesarxuchao/contrib,kow3ns/contrib,ingvagabund/contrib,piosz/contrib,vishpat/contrib,fcvarela/contrib,micheleorsi/contrib,girishkalele/contrib,caesarxuchao/contrib,Pensu/contrib,rchicoli/kubernetes-contrib,jfchevrette/contrib,ingvagabund/contrib,kokhang/contrib,upmc-enterprises/contrib,ixdy/contrib,Wattpad/kubernetes-contrib,caesarxuchao/contrib,jojimt/contrib,jcmoraisjr/k8s-contrib,remoe/contrib,jfchevrette/kubernetes-contrib,freehan/contrib,remoe/contrib,ixdy/kubernetes-contrib,girishkalele/contrib,adamschaub/contrib,gmarek/contrib,ixdy/kubernetes-contrib,rmmh/kubernetes-contrib,morganwu277/contrib,krousey/contrib,adamschaub/contrib,lavalamp/contrib,chiradeep/contrib,micheleorsi/contrib,Pensu/contrib,thockin/contrib,eastbanctech/kubernetes-contrib,cdemers/contrib,stephenrlouie/contrib,jfchevrette/kubernetes-contrib,freehan/contrib,atosatto/kubernetes-contrib,timstclair/kube-contrib,ixdy/kubernetes-contrib,davidopp/contrib,jasonbrooks/contrib,chiradeep/contrib,widgetpl/contrib,gmarek/contrib,lewislyou/contrib,marketlogicsoftware/contrib,hongchaodeng/contrib,cdemers/contrib,cgwalters/kubernetes-contrib,thockin/contrib,krzyzacy/contrib,timstclair/kube-contrib,danushkaf/contrib,aledbf/contrib,andrew-j-price/contrib,stephenrlouie/contrib,kskalski/contrib,grodrigues3/contrib,endocode/contrib,marketlogicsoftware/contrib,andrew-j-price/contrib,krousey/contrib,devlinmr/contrib,danehans/contrib,moul/contrib,gouyang/contrib,morganwu277/contrib,lewislyou/contrib,danushkaf/contrib,xialonglee/contrib,fcvarela/contrib,jfchevrette/contrib,micheleorsi/contrib,jasonbrooks/contrib,Pensu/contrib,danehans/contrib,thockin/contrib,jfchevrette/contrib,timstclair/kube-contrib,eparis/contrib,krzyzacy/contrib,jojimt/contrib,jcmoraisjr/k8s-contrib,Wattpad/kubernetes-contrib,pwittrock/contrib,grodrigues3/contrib,danushkaf/contrib,grodrigues3/contrib,tmc/contrib,jfchevrette/kubernetes-contrib,pwittrock/contrib,jasonbrooks/contrib,cdemers/contrib,pwittrock/contrib,gmarek/contrib,verb/contrib,Pensu/contrib,Wattpad/kubernetes-contrib,timstclair/kube-contrib,gouyang/contrib,rmmh/kubernetes-contrib,eastbanctech/kubernetes-contrib,foxish/contrib,devlinmr/contrib,gemini-project/contrib,devlinmr/contrib,x13n/contrib,marketlogicsoftware/contrib,olark/kubernetes-contrib,upmc-enterprises/contrib,kow3ns/contrib,atosatto/kubernetes-contrib,upmc-enterprises/contrib,devlinmr/contrib,k8s-packages-power/contrib,vishpat/contrib,marketlogicsoftware/contrib,davidopp/contrib,Arano-kai/kubernetes-contrib,timstclair/kube-contrib,aknuds1/contrib,girishkalele/contrib,ixdy/kubernetes-contrib,atosatto/kubernetes-contrib,olark/kubernetes-contrib,rchicoli/kubernetes-contrib,xialonglee/contrib,foxish/contrib,caesarxuchao/contrib,pwittrock/contrib,tmc/contrib,adamschaub/contrib,pwittrock/contrib,jojimt/contrib,ixdy/kubernetes-contrib,hongchaodeng/contrib,moul/contrib,krzyzacy/contrib,morganwu277/contrib,tmc/contrib,jdavis7257/contrib,krzyzacy/contrib,morganwu277/contrib,simonswine/kubernetes-contrib,spxtr/contrib,caesarxuchao/contrib,mikedanese/contrib,Pensu/contrib,kskalski/contrib,mikedanese/contrib,k8s-packages-power/contrib,davidopp/contrib,krousey/contrib,widgetpl/contrib,luxas/contrib,danehans/contrib,thockin/contrib,davidopp/contrib,widgetpl/contrib,x13n/contrib,devlinmr/contrib,verb/contrib,cgwalters/kubernetes-contrib,piosz/contrib,rchicoli/kubernetes-contrib,kokhang/contrib,simonswine/kubernetes-contrib,luxas/contrib,danushkaf/contrib,moul/contrib,kokhang/contrib,marketlogicsoftware/contrib,olark/kubernetes-contrib,mikedanese/contrib,jasonbrooks/contrib,jasonbishop/contrib,widgetpl/contrib,eastbanctech/kubernetes-contrib,rchicoli/kubernetes-contrib,davidopp/contrib,luxas/contrib,gemini-project/contrib,rmmh/kubernetes-contrib,remoe/contrib,Q-Lee/contrib,spxtr/contrib,freehan/contrib,fcvarela/contrib,andrew-j-price/contrib,atosatto/kubernetes-contrib,rchicoli/kubernetes-contrib,adamschaub/contrib,jojimt/contrib,jlebon/contrib,Arano-kai/kubernetes-contrib,grodrigues3/contrib,kokhang/contrib,kow3ns/contrib,gmarek/contrib,xialonglee/contrib,ixdy/contrib,verb/contrib,girishkalele/contrib,kow3ns/contrib,danushkaf/contrib,gemini-project/contrib,jfchevrette/kubernetes-contrib,girishkalele/contrib,atosatto/kubernetes-contrib,foxish/contrib,jfchevrette/contrib,luxas/contrib,remoe/contrib,moul/contrib,upmc-enterprises/contrib