Before this commit, but still on this feature branch, the creation of
mattermost teams where a background job. However, it was decided it was
better that these happened as transaction so feedback could be displayed
to the user.

Merge branch 'zj-create-mattermost-team' of gitlab.com:gitlab-org/gitlab-ce into zj-create-mattermost-team

Remove Link from Push Events for deleted branches

Closes #28082

See merge request !9203

API: Remove `DELETE projects/:id/deploy_keys/:key_id/disable`

Closes #28286

See merge request !9366

fix incorrect sidekiq concurrency count in admin background page

Closes #19862

See merge request !9359

Remove window-binding hack with imports-loader

See merge request !9123

fix MR jobs loading icon visibility

Closes #28295

See merge request !9324

exclude rpc_pipefs from system disk info

See merge request !9355

unbind existing listenerss and remove duplicate MiniPipelineGraph init

Small improvements for Cycle Analytics

See merge request !9153

Todo done clicking is kind of unusable.

Closes #25465

See merge request !8691

Increase process_commit queue weight from 2 to 3

Closes #25828

See merge request !9326

Global dropdown edits

See merge request !9336

Fix job status -> pipeline status

Closes #28313

See merge request !9320

Add docs for directly addressed todos

See merge request !9312

Fix position of milestone panel counters

Closes #23819

See merge request !7842

Fix grammar issue in admin/runners

Closes #28353

See merge request !9344

Remove issue and MR counts from label index

Closes #25413

See merge request !9332

The Done button will change to an Undo button and the line item will be greyed out.
Bold links will be unbolded.
The user can undo the task by clicking the Undo button.

[ci skip]

Add patch release changelogs

See merge request !9353

Update documentation to include yarn in our dependencies

See merge request !9316

Fix merge service error with no source

See merge request !9348

Truncate the DB in after(:all) test for Gitlab::ImportExport::ProjectTreeRestorer

See merge request !9339