Procedures

make a PR to update:
- kube-state-metrics image tag for both quay.io and staging-k8s.gcr.io
- compatibility matrix
- changelog entry
  - only include user relevant changes
  - entries should follow in order below
```
[CHANGE]
[FEATURE]
[ENHANCEMENT]
[BUGFIX]
```
  - all lines should be full sentences
- kube-state-metrics image tag used in Kubernetes deployment yaml config
cut the new release branch, i.e., release-1.2, or merge/cherry-pick changes onto the minor release branch you intend to tag the release on
cut the new release tag, i.e., v1.2.0-rc.0
ping Googlers(@loburm/@piosz) to build and push newest image to k8s.gcr.io (or to staging-k8s.gcr.io in case of release candidates)
build and push newest image to quay.io(@brancz)

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