Prepare 17.3 upgrade stop

Closes gitlab-org/distribution/team-tasks#1607

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/163724



Merged-by: Alex Ives <aives@gitlab.com>
Approved-by: Davin Walker <dwalker@gitlab.com>
Approved-by: João Alexandre Cunha <j.a.cunha@gmail.com>
Approved-by: Naman Jagdish Gala <ngala@gitlab.com>
Approved-by: Eugenia Grieff <egrieff@gitlab.com>
Approved-by: Adam Hegyi <ahegyi@gitlab.com>
Approved-by: Jon Jenkins <jjenkins@gitlab.com>
Approved-by: Alex Ives <aives@gitlab.com>
Reviewed-by: Alex Ives <aives@gitlab.com>
Co-authored-by: Clemens Beck <cbeck@gitlab.com>