Merge branch 'eduardosanz/2fa-admin-mode' into 'master'

Allow to enter verification codes in admin mode

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/118811



Merged-by: Drew Blessing <drew@gitlab.com>
Approved-by: Aboobacker MK <akarakath@gitlab.com>
Approved-by: Drew Blessing <drew@gitlab.com>
Reviewed-by: Drew Blessing <drew@gitlab.com>
Reviewed-by: Eduardo Sanz García <esanz-garcia@gitlab.com>
Co-authored-by: Eduardo Sanz García <esanz-garcia@gitlab.com>