Update ProjectRegistry references to ProjectRepositoryRegistry and new methods

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/167448



Merged-by: Phillip Wells <pwells@gitlab.com>
Approved-by: Phillip Wells <pwells@gitlab.com>
Reviewed-by: Michael Kozono <mkozono@gitlab.com>
Co-authored-by: Daniel Diniz <8012210-dnldnz@users.noreply.gitlab.com>