Update Prometheus Kubernetes node discovery
Use new upstream0 recommended rewrite for discovering Kubernetes nodes through the API server proxy.
Closes: https://gitlab.com/gitlab-org/omnibus-gitlab/issues/2355
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Use new upstream0 recommended rewrite for discovering Kubernetes nodes through the API server proxy.
Closes: https://gitlab.com/gitlab-org/omnibus-gitlab/issues/2355