Extraneous Secrets generated by ACM Observability

Issue

• Many non-required Secrets may be generated within the open-cluster-management-observability namespace for the ServiceAccount endpoint-observability-operator-sa, which may put undue pressure on etcd:

  $ oc get secrets -n open-cluster-management-observability
  [..]
  endpoint-observability-operator-sa-dockercfg-zhc9g                   kubernetes.io/dockercfg               1      23h
  endpoint-observability-operator-sa-dockercfg-zk7jc                   kubernetes.io/dockercfg               1      33h
  endpoint-observability-operator-sa-dockercfg-zmqg9                   kubernetes.io/dockercfg               1      35h
  endpoint-observability-operator-sa-dockercfg-zqbct                   kubernetes.io/dockercfg               1      16h
  [..]
  endpoint-observability-operator-sa-token-24nrg                   kubernetes.io/service-account-token   4      14h
  endpoint-observability-operator-sa-token-25h8k                   kubernetes.io/service-account-token   4      10h
  endpoint-observability-operator-sa-token-27r8b                   kubernetes.io/service-account-token   4      23h
  

• The multicluster-observability-operator is being OOMKilled