RemoteRepository.admin is not set properly on GitLab

[humitos]

When syncing RemoteRepository we are not setting admin field properly. We only set it to True when the user is the owner of the repository. It could be that the user is "Maintainer" (full access) but not owner.

The code that needs to be changed is at

readthedocs.org/readthedocs/oauth/services/gitlab.py

Lines 182 to 184 in d2157c8

	repo.admin = not repo_is_public
	if not repo.admin and 'owner' in fields:
	repo.admin = self.is_owned_by(fields['owner']['id'])

GitLab is returning the permissions as:

"permissions": {"project_access": {"access_level": 40, "notification_level": 3}

https://docs.gitlab.com/ee/api/access_requests.html