Merge pull request #73 from openshift-bot/art-consistency-openshift-4.20-ose-cluster-update-keys

OCPBUGS-57820: Updating ose-cluster-update-keys-container image to be consistent with ART for 4.20

Author: openshift-merge-bot[bot]

Dockerfile.rhel

@@ -1,4 +1,4 @@
-FROM registry.ci.openshift.org/ocp/4.18:base-rhel9
+FROM registry.ci.openshift.org/ocp/4.20:base-rhel9
 COPY manifests.rhel/ /manifests/
 LABEL description="This image contains the trusted keys for the updates delivered to a cluster." \
       io.openshift.release.operator=true