Optimize some tests with RSpec Set

See merge request !14047

Refactor MonitoringService class

See merge request !14003

Delete duplicated lines.

See merge request !14180

Escape characters in git user name

Closes #18308

See merge request !14020

Merge branch 'fix/sm/37559-pipeline-triggered-through-api-not-showing-trigger-variables' into 'master'

Fix `ci_builds` to have an associated `trigger_request_id`

See merge request !14244

AutoDevOps banner hidden on explicit CI config

Closes #37652

See merge request !14207

Fix: GPG tmp dir removal race condition

Ignore any errors when removing the tmp directory, as we may run into a
race condition:
The `gpg-agent` agent process may clean up some files as well while
`FileUtils.remove_entry` is iterating the directory and removing all its
contained files and directories recursively, which could raise an error.

Closes #36998

See merge request !14194

Replace the 'profile/active_tab.feature' spinach test with an rspec analog

See merge request !14239

Extends the helper method to no show the banner as soon as the project
has a `.gitlab-ci.yml` file on the default branch.

Fixes gitlab-org/gitlab-ce#37652

Merge branch '37629-lazy-image-loading-breaks-notification-mails-for-an-added-screenshot' into 'master'

Resolve "Lazy image loading breaks notification mails for an added screenshot"

Closes #37629

See merge request !14161

Docs for automatically inherit the milestone and labels of the issue

See merge request !14223

Fix the Doorkeeper.optional_scopes issue triggered by !13314

Closes #37753

See merge request !14219

Allow all AutoDevOps banners to be disabled

Closes #37653

See merge request !14218

Add usage ping for Auto DevOps

Closes #37648

See merge request !14162

Add help text to runner edit page that tags should be separated by commas.

Closes #37405

See merge request !14224

Resolve "New issue from failed build no longer links to failed build"

Closes #36907

See merge request !13790

Resolve "Move `lib/ci` to `lib/gitlab/ci`"

Closes #5836

See merge request !14078

Remove db/migrate/20170828135939_migrate_user_external_mail_data.rb

See merge request !14240

Update mysql_to_postgresql.md to deprecate these docs in favor of PGLoader

See merge request !14238

This file is a duplicate of a post-deploy migration and appears to have
been left in by mistake.

Looping through the Users table in a foreground migration would've been
a bad idea.

[ci skip]