GitLab notification improvements
These are needed for heptapod#145 (closed), which will rely on launching the post-receive hooks from the Rails side.
This instance will be upgraded to Heptapod 18.5.1 on 2025-11-13 between 17:00 and 18:00 UTC+2
These are needed for heptapod#145 (closed), which will rely on launching the post-receive hooks from the Rails side.