Merge branch 'michold-rm-action_monthly-metrics' into 'master'

Remove action_monthly_active_users metrics

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/113551



Merged-by: Kassio Borges <kborges@gitlab.com>
Approved-by: Piotr Skorupa <pskorupa@gitlab.com>
Approved-by: Valery Sizov <valery@gitlab.com>
Approved-by: Kassio Borges <kborges@gitlab.com>
Approved-by: Gregory Havenga <11164960-ghavenga@users.noreply.gitlab.com>
Co-authored-by: michold <mwielich@gitlab.com>