feat(posts): add prometheus, oauth2-proxy, ... to cheapest-amazon-eks

Author: ruzickap

.github/workflows/post_tests.yml

@@ -26,6 +26,8 @@ env:
   AWS_ROLE_TO_ASSUME: ${{ secrets.AWS_ROLE_TO_ASSUME }}
   # renovate: datasource=github-tags depName=weaveworks/eksctl
   EKSCTL_VERSION: 0.124.0
+  GOOGLE_CLIENT_ID: ${{ secrets.GOOGLE_CLIENT_ID }}
+  GOOGLE_CLIENT_SECRET: ${{ secrets.GOOGLE_CLIENT_SECRET }}
 
 jobs:
   post-pipeline: