The endpoint dropped, get ':id/repository/commits/:sha/jobs', should be
replace by a new endpoint.

[ci skip]

This commit was about 6 commits before squashing, with the main goal to
make all tests green. Now, after pushing this commit we'll see what the
CI has to say about that.

This commit only renames the commits, the cascading effects will be
dealt with later.

Fixes gitlab-org/gitlab-ce#28515

[ci skip]

Improve pipeline triggers API

See merge request !9713

Remove remnants of git annex

See merge request !9508

Resolve "Improve Omnibus-Mattermost Command installation flow"

See merge request !9257

Delete artifacts for pages unless expiry date is specified

See merge request !9716

Fix json response in branches controller

Closes #28898

See merge request !9710

Use ETag to improve performance of issue notes polling

Closes #27582

See merge request !9036

Change language for testing colour fallback

See merge request !9537

Update profiles/account view to display new username

Closes #28655

See merge request !9650

Enable build job for caching Gems of GitLab EE

See merge request !9712

Remove es6 file extension from JavaScript files

See merge request !9241

Review changes

- they can have owner,
- they can be edited,
- they have description,
- you can take ownership of them