Post-merge improve of CI permissions
What does this MR do?
Improves code that were merged yestarday in this MR: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6409
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Improves code that were merged yestarday in this MR: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6409