feat(api/gitlab/v1): /gitlab/v1/repository-paths/{{pathName}}/repositories/list/ should return an empty response when no repositories are found

Context

With feat(api/gitlab/v1): add route for paginated li... (!1193 - merged) we added a route to list paginated repos under a given path. This route performs well in most cases, but there a situation where the API contact is not yet well-defined.

Problem

If there are no repositories with tags under a given path, we do not return any response at all. We should rather return an empty response, as with gitlab/v1/repositories/<path>/tags/list/.