Added minio-operator-authz-policy.yaml

General MR

Summary

Added minio-operator-authz-policy.yaml

allows minio-operator access to monitor the tenant

Relevant logs/screenshots

Testing BB with this branch produces:

$ kubectl get tenant -A
NAMESPACE    NAME                         STATE         HEALTH   AGE
logging      logging-loki-minio           Initialized   green    4m
mattermost   mattermost-minio             Initialized   green    77s
minio        minio-minio-minio-instance   Initialized   green    3m16s
thanos       thanos-minio                 Initialized   green    3m14s

Linked Issue

For #167 (closed)

Upgrade Notices

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