Merge branch '395720-top-level-group-alert-saas-only' into 'master'

Top level group alert saas only

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/123026



Merged-by: Bojan Marjanovic <bmarjanovic@gitlab.com>
Approved-by: Zack Cuddy <zcuddy@gitlab.com>
Approved-by: Bojan Marjanovic <bmarjanovic@gitlab.com>
Approved-by: Halil Coban <hcoban@gitlab.com>
Approved-by: Minahil Nichols <minahilnichols@gitlab.com>
Reviewed-by: Zack Cuddy <zcuddy@gitlab.com>
Reviewed-by: Bojan Marjanovic <bmarjanovic@gitlab.com>
Reviewed-by: Halil Coban <hcoban@gitlab.com>
Co-authored-by: syarynovskyi <syarynovskyi@gitlab.com>