Merge branch '490098-policies-more-approvar-actions' into 'master'

Allow users to specify more than one required approval actions

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/166794



Merged-by: Alexander Turinske <aturinske@gitlab.com>
Approved-by: Martin Čavoj <mcavoj@gitlab.com>
Approved-by: Ryan Lehmann <rlehmann@gitlab.com>
Approved-by: Alexander Turinske <aturinske@gitlab.com>
Reviewed-by: Alexander Turinske <aturinske@gitlab.com>
Reviewed-by: Artur Fedorov <afedorov@gitlab.com>
Reviewed-by: Martin Čavoj <mcavoj@gitlab.com>
Reviewed-by: Ryan Lehmann <rlehmann@gitlab.com>
Co-authored-by: Artur Fedorov <afedorov@gitlab.com>