Automatic merge from submit-queue (batch tested with PRs 55594, 47849, 54692, 55478, 54133). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Use HPA permissions to read custom metrics in Custom Metrics e2e test **What this PR does / why we need it**: This PR fixes e2e test for Stackdriver Custom Metrics on GKE. With PR: https://github.com/kubernetes/kubernetes/pull/55387 it will be also necessary for analogous test on GCE. **Release note**: ```release-note NONE ```