Update obsolete gitaly cluster config
- Update direct DB config
- Remove deprecated
failover_election_strategyconfig (see https://gitlab.com/gitlab-org/omnibus-gitlab/-/merge_requests/5228)
Edited by George Koltsov
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
failover_election_strategy config (see https://gitlab.com/gitlab-org/omnibus-gitlab/-/merge_requests/5228)