GitLab is used only for code review, issue tracking and project management. Canonical locations for source code are still https://gitweb.torproject.org/ https://git.torproject.org/ and git-rw.torproject.org.
Two news servers aioe.org and gmane.org are inaccessible over SSL. Plain connections (reading) functional.
Could be by chance, could be configuration mistake on my side, could be broken by Tor or TorBirdy. I have no idea.