Update pg_hba.conf template to work with repmgr
We need to add entries to pg_hba.conf as documented in https://gitlab.com/gitlab-org/omnibus-gitlab/issues/1807#note_31216296
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
We need to add entries to pg_hba.conf as documented in https://gitlab.com/gitlab-org/omnibus-gitlab/issues/1807#note_31216296