Merge pull request openshift#6464 from wking/require-4.3-to-depend-on-4.4

core-services/prow/02_config/_plugins: Require 4.3 bugs to depend on 4.4 bugs

Author: openshift-merge-robot

core-services/prow/02_config/_plugins.yaml

@@ -161,6 +161,7 @@ bugzilla:
       - status: RELEASE_PENDING
       - resolution: ERRATA
         status: CLOSED
+      dependent_bug_target_release: 4.4.0
       target_release: 4.3.0
       validate_by_default: true
     release-4.4: