When a new snippet repository is created, the ref inside
HEAD is `master` even when the default branch is different.

This also happens with projects and wikis. These resources fix
this by explicitly rewrite the HEAD reference and we're applying
the same behavior to snippets.

When the repository is pushed or pulled we update the reference
inside the HEAD file.

Merge branch 'Migrate-Bootstrap-dropdown-to-GitLab-UI-GlDropdown-in-app/assets/javascripts/vue_shared/components/pikaday.vue' into 'master'

Migrate Bootstrap dropdown to GitLab UI GlDropdown in pikaday.vue

See merge request gitlab-org/gitlab!41458

Set up instance-level MR approval UI text

See merge request gitlab-org/gitlab!49871

Add API to query group MR approval settings

See merge request gitlab-org/gitlab!50256

Add static validation to gitlab CI yaml

See merge request gitlab-org/gitlab!50364

This MR adds supported migration, model and GET API to manage group
merge request approval settings.

The new GET API is limited to user with owner or admin role.

GET /groups/:id/merge_request_approval_setting

Add alert for a successful commit

See merge request gitlab-org/gitlab!50387

Fix integrations not saving on Firefox

See merge request gitlab-org/gitlab!50018

The additional timeout gives the browser some time to
update the CSS before submitting the form. Without it,
Safari does not apply the "disabled" style to the button
and still applying the primary success color.

Add rake task for migration legacy pages storage

See merge request gitlab-org/gitlab!50153

Regenerate GraphQL schema

See merge request gitlab-org/gitlab!50479

Remove show_inherited_labels FF

See merge request gitlab-org/gitlab!50378

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/50479

Set registry fields to nullable

See merge request gitlab-org/gitlab!50362

- type
- schema
- docs

Allow multiple todos behind a feature flag

See merge request gitlab-org/gitlab!47629

Update details about retrying merge trains

See merge request gitlab-org/gitlab!50417

Resolve the race-condition of ScanSecurityReportSecretsWorker

See merge request gitlab-org/gitlab!50335

Fixed Vale issues

See merge request gitlab-org/gitlab!50467

More revisions to bring the page closer to GitLab tone and style.

Add documentation for upcoming deployment

See merge request gitlab-org/gitlab!50450

This commit updates the documentation about the environments page to
include an example of an upcoming deployment.

Improve GraphQL lazy abstractions

See merge request gitlab-org/gitlab!50372

Track usage for Terraform State API

See merge request gitlab-org/gitlab!50224

Geo: Fix LFS for location-aware Git URL

See merge request gitlab-org/gitlab!50415

Update regex for alert box vale rule

See merge request gitlab-org/gitlab!50414

Add snippet repository storage workers

See merge request gitlab-org/gitlab!49227

[TOOLING] Add fluent API to be_sorted matcher [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!50347

Add removal note to WAF doc

See merge request gitlab-org/gitlab!45925

Enable PKCE OAuth flow

See merge request gitlab-org/gitlab!49756

Enable Authorization code with Proof Key for Code Exchange flow
for OAuth authentication and authorization. The documentation
contains an example of how to go through the complete flow.

Return either project or MR approval rules in users request

See merge request gitlab-org/gitlab!50139

Merge branch '268129-add-the-invite-members-option-to-the-quick-menu-the-plus-icon-one-next-to-search' into 'master'

Add the invite members to the quick menu

See merge request gitlab-org/gitlab!50069

- experimentation.