Merge pull request #35478 from kannon92/add-use-git-dir-jobset-image-push

use with git dir

Author: k8s-ci-robot

config/jobs/image-pushing/k8s-staging-jobset.yaml

@@ -20,4 +20,5 @@ postsubmits:
               - --project=k8s-staging-images
               - --scratch-bucket=gs://k8s-staging-images-gcb
               - --env-passthrough=PULL_BASE_REF
+              - --with-git-dir
               - .