jobs: migrate kubernetes/community jobs to eks cluster

Signed-off-by: Nabarun Pal <[email protected]>

Author: palnabarun

config/jobs/kubernetes/community/community-presubmit.yaml

@@ -1,6 +1,7 @@
 presubmits:
   kubernetes/community:
   - name: pull-community-verify
+    cluster: eks-prow-build-cluster
     branches:
     - master
     always_run: true
@@ -17,6 +18,7 @@ presubmits:
       testgrid-dashboards: sig-contribex-community
       testgrid-tab-name: pull-verify
   - name: pull-community-tempelis-check
+    cluster: eks-prow-build-cluster
     decorate: true
     branches:
     - ^master$