Properly quote table name in Rake task for MySQL and PostgreSQL compatibility
!4318 (merged) broke the gitlab:db:drop_tables functionality for PostgreSQL.
Closes #15259 (closed)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
!4318 (merged) broke the gitlab:db:drop_tables functionality for PostgreSQL.
Closes #15259 (closed)