CE destroy repo mirrors

Closes #54574

See merge request gitlab-org/gitlab-ce!27087

It is important to destroy data related to repo mirrors when they are
disabled.
Use `_destroy` nested attribute instead of `enabled` for push mirrors.
Call `remove_import_data` after saving a project if its pull mirror is
disabled.

CI variables of type file

Closes #46806

See merge request gitlab-org/gitlab-ce!27112

Add env_var and file as supported types for CI variables. Variables of
type file expose to users existing gitlab-runner behaviour - save
variable value into a temp file and set the path to this file in an ENV
var named after the variable key.

Resolves https://gitlab.com/gitlab-org/gitlab-ce/issues/46806.

Fix uploading of LFS tracked file through UI

Closes #61203

See merge request gitlab-org/gitlab-ce!28052

[QA] Escape arg used as regex

Closes gitlab-org/quality/performance#2

See merge request gitlab-org/gitlab-ce!28104

Resolve "Reporters can create labels in projects/groups"

Closes #61222

See merge request gitlab-org/gitlab-ce!27991

Merge branch '10090-move-ee-differences-for-app-assets-javascripts-pages-projects-issues-index-index-js' into 'master'

Resolved EE differences for issues page index

Closes gitlab-ee#10090

See merge request gitlab-org/gitlab-ce!28031

Remove cleaned up OIDs from database and cache

Closes #30093

See merge request gitlab-org/gitlab-ce!26555

CE Backport: Create ActiveRecordModel and table for Merge Train feature

See merge request gitlab-org/gitlab-ce!27879

Merge branch '58105-pipeline-author-and-commit-author-too-close-together-in-pipeline-list' into 'master'

Improve pipelines table spacing, add triggerer column

Closes #38802 and #58105

See merge request gitlab-org/gitlab-ce!26136

Add client methods for DisconnectGitAlternates rpc

See merge request gitlab-org/gitlab-ce!27938

Fix duplicate merge request pipelines created by Sidekiq worker retry

See merge request gitlab-org/gitlab-ce!26643

Session stored globally per request

See merge request gitlab-org/gitlab-ce!27658

Backport "Fix namespace/project removal elasticsearch limit" to CE

See merge request gitlab-org/gitlab-ce!27933

[CE] Fix filter token not showing up when multiple assignees are enabled

See merge request gitlab-org/gitlab-ce!27759

Added Omniauth OpenID Connect strategy

See merge request gitlab-org/gitlab-ce!27383

This database table and AR model is going to be used for
the merge train feature.

Allow usage of quick actions for internal users

See merge request gitlab-org/gitlab-ce!28071

Just prevent support bots from using quick actions in EE

No leading/trailing spaces when generating heading ids (Fixes #57528)

Closes #57528

See merge request gitlab-org/gitlab-ce!27025

Refactor

Document Prometheus app can be uninstalled

Closes #60665

See merge request gitlab-org/gitlab-ce!28098

Upgrade to Rubocop 0.68.1

See merge request gitlab-org/gitlab-ce!28046

Docs: Realigning scattered EE docs into CE

See merge request gitlab-org/gitlab-ce!28102

Add troubleshooting step for older docker clients to registry documentation

Closes omnibus-gitlab#4195

See merge request gitlab-org/gitlab-ce!27917

* The container registry needs a compatibility setting enabled for older
docker clients. This will document how to enable the setting for
omnibus and source installations.

Edit regionendpoint text

See merge request gitlab-org/gitlab-ce!27928

Docs: Change geo redirects to relative to match EE

See merge request gitlab-org/gitlab-ce!28100

Docs: Second Attempt to realign administration/geo docs

See merge request gitlab-org/gitlab-ce!28099