Move gfm_autocomplete_spec.rb out of quarantine

Closes #57995 and #56843

See merge request gitlab-org/gitlab-ce!25542

Resolve "Add keybinding for next/previous file in merge request diff"

See merge request gitlab-org/gitlab-ce!25355

Mousetrap is used as the help-tool to listen to keystrokes

Added currentDiffIndex getter to store that holds
the index of currently active diff file in the list

Instead of computing it on the component, we will take advantage of it
being available for all components in DiffsApp

Testing keyboard navigation and jumpToFile()

Persist source sha and target sha for merge pipelines

See merge request gitlab-org/gitlab-ce!25417

Quarantine failing push_mirroring_over_http_spec

See merge request gitlab-org/gitlab-ce!25590

source_sha and target_sha are used for merge request pipelines

Added permissions section to issue template [CE]

See merge request gitlab-org/gitlab-ce!25576

Update operations settings breadcrumb trail

Closes #56387

See merge request gitlab-org/gitlab-ce!25539

Elaborate on POSTGRES_VERSION Auto DevOps setting

See merge request gitlab-org/gitlab-ce!25579

Add documentation on upgrading GitLab HA nodes

Closes #58121

See merge request gitlab-org/gitlab-ce!25574

API: Promote project milestone to a group milestone

Closes #53861

See merge request gitlab-org/gitlab-ce!25203

Added: Specs for the API action

As mentioned in
https://gitlab.com/gitlab-org/gitlab-ce/issues/58121#note_145299901, it
wasn't obvious that upgrading an GitLab HA cluster required special
care. Link to the Omnibus documentation for upgrade instructions.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58121

Remove N+1 query for tags in /admin/runners page

See merge request gitlab-org/gitlab-ce!25572

As discussed in https://github.com/mbleigh/acts-as-taggable-on/issues/91,
we can avoid N+1 queries if we use `tags` instead of `tag_list`.

Seen while reviewing
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/19740.

update persona links issue template

See merge request gitlab-org/gitlab-ce!25560

Add name_without_type to environments.json

See merge request gitlab-org/gitlab-ce!25492

It's needed to show shorter names in environments "folders"

Revert "Merge branch '56726-fix-n+1-in-issues-and-merge-requests-api' into 'master'"

See merge request gitlab-org/gitlab-ce!25570

Fix ETag caching not being used for AJAX requests

Closes #57905

See merge request gitlab-org/gitlab-ce!25400

This reverts merge request !25042

Revert "Merge branch '13784-simple-masking-of-protected-variables-in-logs' into 'master'"

See merge request gitlab-org/gitlab-ce!25566

This reverts merge request !25293

Fix N+1 query in Issues and MergeRequest API when issuable_metadata presense

See merge request gitlab-org/gitlab-ce!25042

Move logic of obtaining Issuable data to separate method

Merge branch '46750-ci-empty-environment-is-created-even-when-a-job-isn-t-run-when-manual' into 'master'

Sort Environments by Last Updated

Closes #46750

See merge request gitlab-org/gitlab-ce!25260

Get rid of ScheduleInstallationService

See merge request gitlab-org/gitlab-ce!25420

- deletes schedule_installation_service.rb
- moves schedule_installation_service.rb logic to create_service.rb
- moves specs as well

Removes code duplication

Remove unecessary spec block

Abide review suggestions

Test installable applications which are not associated to a cluster

Fix a typo

Removes duplciated expectation

Reuse variable instead of redefining

Remove method in favor of a local scoped lambda

Improve 'failing service' shared examples

Test the increase of status count

Remove duplicated test

Enable fronzen literal

Resolve "Extend utility classes for `gitlab-ui`search-box"

Closes #58202

See merge request gitlab-org/gitlab-ce!25554

Revert "Merge branch 'revert-82d7b5a0-ce' into 'master'"

Closes #57857 and #50747

See merge request gitlab-org/gitlab-ce!25559

Added YouTrack integration

Closes #42595

See merge request gitlab-org/gitlab-ce!25361