Port of 27376-cache-default-branch-pipeline-on-project to EE

See merge request !1441

Add docs to CSV export

See merge request !1389

20450 fix ujs actions ee

See merge request !1370

Better priority sorting

See merge request !1429

Adds ExportCsvWorker spec

See merge request !1433

Moved the gear settings dropdown in the group view to a tab

See merge request !1409

prevent filtering Issues by multiple milestones, authors, or assignees

See merge request !1410

Remove pushes count from usage ping payload

Closes #1858

See merge request !1432

This query is constantly generating timeout errors on large installations and we don't
have a simple solution for now and also we don't think having this counter is
really critical.

For all timetracking props, include annotations

Closes #1428

See merge request !1405

Add a note about ES update to the GitLab update guide

Closes #1585

See merge request !1428

to the first option inside said subtab.

Also code cleanup

This reverts merge request !1426

Port of 27376-cache-default-branch-pipeline-on-project to EE

See merge request !1426

Fix rake gitlab:env:info elasticsearch datum

Closes #1164

See merge request !1422

Port of issue-boards-new-search-bar to EE

See merge request !1397

Updated issue boards

See merge request !1419

[ci skip]

Fix rollback for an EE migration

See merge request !1425

Move the index removal to be before the column removal

* Audit Events
* Pipeline quotas
* Analytics

Resolve "Use the v4 API from the frontend"

Closes #1849

See merge request !1373