[release-4.20] OCPBUGS-63171: Add imagestream update dryrun test#30387

openshift-cherrypick-robot wants to merge 2 commits intoopenshift:release-4.20openshift/origin:release-4.20from

openshift-cherrypick-robot:cherry-pick-30357-to-release-4.20openshift-cherrypick-robot/origin:cherry-pick-30357-to-release-4.20Copy head branch name to clipboard