Merge branch 'sh-consolidate-migration-delete' into 'master'

Consolidate database cleaner code for migrations

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/105600



Merged-by: Thong Kuah <tkuah@gitlab.com>
Approved-by: Krasimir Angelov <kangelov@gitlab.com>
Approved-by: Thong Kuah <tkuah@gitlab.com>
Co-authored-by: Stan Hu <stanhu@gmail.com>