Update ref selector to use header slot

See merge request gitlab-org/gitlab!55121

This commit refactors the ref_selector component to take advantage of
the newly-added #header slot in the GlDropdown component.

Revert "Merge branch 'rake-task-to-clear-description-templates-cache' into 'master'" [RUN ALL RSPEC]

See merge request gitlab-org/gitlab!55690

Document the expected validation of factories and their traits

See merge request gitlab-org/gitlab!55619

Remove unnecessary method_missing from Bitbucket impoters

See merge request gitlab-org/gitlab!55541

Resolve "Check usage of /app/views/projects/update.js.haml"

See merge request gitlab-org/gitlab!53065

Add project selector to personal access token form [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!54617

Allows users to scope a PAT to a project

Implement new preparing internal merge_status

See merge request gitlab-org/gitlab!54900

Update value in rotation time controls

See merge request gitlab-org/gitlab!55650

Bump auto-deploy-image to v2.6.0

See merge request gitlab-org/gitlab!54983

Deploy.latest.gitlab-ci.yml.
From version 2.0.0 to 2.6.0

This reverts merge request !54706

Resolve "Tier badge doesn't match"

See merge request gitlab-org/gitlab!55646

Remove obsolete DOMContentLoadedEventListener

See merge request gitlab-org/gitlab!55627

Make instructions point to the specific role

See merge request gitlab-org/gitlab!54061

Revert !53803 in master RUN ALL RSPEC

See merge request gitlab-org/gitlab!55662

Jira Issue Detail page: Add comments

See merge request gitlab-org/gitlab!55221

Sort metrics in metrics report MR widget

See merge request gitlab-org/gitlab!55217

Report any cyclic dep error when seeding build

See merge request gitlab-org/gitlab!54509

Add rake task to cleanup description templates cache in batches

See merge request gitlab-org/gitlab!54706

Refactor pipelines table to GlTable

See merge request gitlab-org/gitlab!55392

Minor style improvements to design management

See merge request gitlab-org/gitlab!48003

- align buttons in widget/design header
- simplify DOM by removing unnecessary nesting of DOM elements
- use data-testid where possible

Add `gqlError` serializer

See merge request gitlab-org/gitlab!55647

This reverts merge request !53803

Review .gitlab/CODEOWNERS entries

See merge request gitlab-org/gitlab!55612

Update metadata on manage access subgroup doc

See merge request gitlab-org/gitlab!55651

Clarify MR target and source SHA variables

See merge request gitlab-org/gitlab!55585

Add package status to generic package docs

See merge request gitlab-org/gitlab!55441

Use different Gitaly internal socket dirs in tests

See merge request gitlab-org/gitlab!55557

Add context metadata for runners API endpoints

See merge request gitlab-org/gitlab!55089

Fix 500 error on group-level Milestones page

See merge request gitlab-org/gitlab!55540

Enhance the RefSelector component

See merge request gitlab-org/gitlab!55245