Merge branch '460774-group-selection' into 'master'

Add ability to select a group for subscription purchase

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/157262



Merged-by: Vijay Hawoldar <vhawoldar@gitlab.com>
Approved-by: Michael Lunøe <michael.lunoe@gmail.com>
Approved-by: Vijay Hawoldar <vhawoldar@gitlab.com>
Reviewed-by: Michael Lunøe <michael.lunoe@gmail.com>
Reviewed-by: Josianne Hyson <jhyson@gitlab.com>
Reviewed-by: Sharmad Nachnolkar <snachnolkar@gitlab.com>
Co-authored-by: Vamsi Vempati <vvempati@gitlab.com>