Merge pull request #3451 from wrmilling/revert-3384-renovate/quay.io-ceph-ceph-20.x

Revert "feat(container)!: Update image quay.io/ceph/ceph ( v19.2.3 → v20.1.0 )"

Author: wrmilling

rook-ceph/cluster/cluster.yaml

@@ -21,7 +21,7 @@ spec:
     # versions running within the cluster. See tags available at https://hub.docker.com/r/ceph/ceph/tags/.
     # If you want to be more precise, you can always use a timestamp tag such ceph/ceph:v15.2.5-20200916
     # This tag might not contain a new Ceph version, just security fixes from the underlying operating system, which will reduce vulnerabilities
-    image: quay.io/ceph/ceph:v20.1.0
+    image: quay.io/ceph/ceph:v19.2.3
     # Whether to allow unsupported versions of Ceph. Currently `nautilus` and `octopus` are supported.
     # Future versions such as `pacific` would require this to be set to `true`.
     # Do not set to true in production.