Merge pull request #440 from mbaldessari/acm-4.13

Use ACM 4.13 starting with 4.19

Author: mbaldessari

values-4.19-hub.yaml

@@ -3,4 +3,4 @@ clusterGroup:
     acm:
       name: advanced-cluster-management
       namespace: open-cluster-management
-      channel: release-2.12
+      channel: release-2.13