Add empty endpoints for RubyGems API
implementation.

Add a new set of authentication resolvers and locator

- :auth_token locator gets a token from Authorization header
  without a Bearer or Token prefix

- Refactor existing resolvers with _with_username suffix

- Add resolvers for tokens without usernames

Fixed diff commit comments not appearing

See merge request gitlab-org/gitlab!53143

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/227161

Docs: Update tiers - check with PMs - Create

See merge request gitlab-org/gitlab!53058

Move Free tier heading for File Locking feature for added clarity

See merge request gitlab-org/gitlab!52960

Rename feature flags for group::release

See merge request gitlab-org/gitlab!53023

Merge branch '296966-update-new-user-invitation-email-test-variation-2-inviter-avatar' into 'master'

Update new user invitation email with an avatar

See merge request gitlab-org/gitlab!51223

- allows us to measure acceptance of invites with avatars

Apply new GitLab UI for input field in admin/applications

See merge request gitlab-org/gitlab!52410

Update structure.sql to match trigger function in migration

See merge request gitlab-org/gitlab!53186

Update search icon color in dropdown

See merge request gitlab-org/gitlab!46619

Add empty state placeholder for milestones

See merge request gitlab-org/gitlab!51887

Update download button size to sm from xs and add btn-default

See merge request gitlab-org/gitlab!52867

Schedule artifact expiry date backfill

See merge request gitlab-org/gitlab!51822

Fix Epic autocomplete reference

See merge request gitlab-org/gitlab!52663

Add enable_search_settings_helper

See merge request gitlab-org/gitlab!53074

Add domain into the query for threat management

See merge request gitlab-org/gitlab!51029

related alerts. Default is nil so it will not
impact alerts under monitoring. This ties the
frontend with the backend

Introduce Prev/Next pagination to branches

See merge request gitlab-org/gitlab!50759

BulkImports: Import Epic's labels

See merge request gitlab-org/gitlab!52626

Docs: fix/update tier badges - Create

See merge request gitlab-org/gitlab!53057

Move CleanupMultiprocDirService out of config.ru

See merge request gitlab-org/gitlab!53139

Update GitLab UI/SVG

See merge request gitlab-org/gitlab!52625

Add Vue notification settings dropdown to groups and user settings

See merge request gitlab-org/gitlab!53045

- This adds the vue notificatio
dropdown to the group detail page
as well as to the user's
notification settings

Wait for username validation JS to complete

See merge request gitlab-org/gitlab!53198

Add docs on how to confirm QA tests pass with a feature flag enabled

See merge request gitlab-org/gitlab!51178

This is the least disruptive to pipeline triage DRIs and encourages us
to confirm we have valid tests _before_ changes are merged.

Cleanup Update Issue Weights Paywall CTAs feature flag

See merge request gitlab-org/gitlab!53117

Import the LabelLink between the Labels and Epics.