[Mesa-dev] Changes to how GitLab merge request CI pipelines work

[Michel Dänzer]

I had https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4432
merged yesterday, so now the CI pipeline jobs only run by default if the
pipeline was triggered by Marge Bot. Otherwise, they can be triggered
manually, similarly to how non-MR pipelines have been working for some
time already.

This normally shouldn't change anything for merging an MR, since Marge
generally needs to rebase the source branch first, in which case the
pipeline is triggered by her and runs automatically as before.


The motivation for this change was to cut down the resource usage for
the CI pipeline and corresponding cost.


-- 
Earthling Michel Dänzer               |               https://redhat.com
Libre software enthusiast             |             Mesa and X developer