Merge branch '419887_rework_create_service' into 'master'

Refactor `Projects::CreateService` to accept `repository_object_format`

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/139106



Merged-by: Gary Holtz <gholtz@gitlab.com>
Approved-by: Gavin Hinfey <ghinfey@gitlab.com>
Approved-by: Gary Holtz <gholtz@gitlab.com>
Co-authored-by: Vasilii Iakliushin <viakliushin@gitlab.com>