Merge pull request #6701 from thockin/promote-git-sync

Promote git-sync v4.2.2

Author: k8s-ci-robot

registry.k8s.io/images/k8s-staging-git-sync/images.yaml

@@ -1,5 +1,6 @@
 - name: git-sync
   dmap:
+    "sha256:2dc189a0886c0df1b5b0cc816c60b5fe0799230a5bb7e123aa28ff4f74ac988a": ["v4.2.2"]
     "sha256:004c213800fac0b71fa2f51979513f5fb383df713c4eaf514ddab65c9efa78b8": ["v4.2.1"]
     "sha256:d277810f72bc30bf0e276db609c0b606a83b5698606d92b6b14f50ea5f54de5f": ["v4.2.0"]
     "sha256:fd9722fd02e3a559fd6bb4427417c53892068f588fc8372aa553fbf2f05f9902": ["v4.1.0"]