Update quay.io/ceph/ceph Docker tag to v20

Author: renovate[bot]

infrastructure/rook/rook-ceph-cluster/rook-ceph-cluster-helmrelease.yaml

@@ -19,7 +19,7 @@ spec:
     cephClusterSpec:
       cephImage:
         repository: quay.io/ceph/ceph
-        tag: v19.2.3
+        tag: v20.2.2
       cephConfig:
         global:
           # speed up OSD recovery