Merge branch 'gkatz_base_spp_service_with_audit' into 'master'

Add audit event when SPP is enabled/disabled for a group with base service

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/174412



Merged-by: Ahmed Hemdan <ahemdan@gitlab.com>
Approved-by: rossfuhrman <rfuhrman@gitlab.com>
Approved-by: Russell Dickenson <rdickenson@gitlab.com>
Approved-by: Ahmed Hemdan <ahemdan@gitlab.com>
Reviewed-by: rossfuhrman <rfuhrman@gitlab.com>
Reviewed-by: Vitali Tatarintev <vtatarintev@gitlab.com>
Reviewed-by: Ahmed Hemdan <ahemdan@gitlab.com>
Co-authored-by: Gal Katz <gkatz@gitlab.com>