API for creating remote mirrors

Closes #24189

See merge request gitlab-org/gitlab!25825

Add Spec for Invalid Ci Yaml Files

See merge request gitlab-org/gitlab!26113

Document current behavior

Avatar upload support for Group Create/Update API

Closes #36681

See merge request gitlab-org/gitlab!25751

Send credentials with GraphQL fetch requests

Closes #36864

See merge request gitlab-org/gitlab!26386

Update dependency @gitlab/svgs to ^1.105.0

See merge request gitlab-org/gitlab!26349

Separate vulnerability and feature entities into own class files

See merge request gitlab-org/gitlab!26088

Merge branch '37320-ensure-project-snippet-feature-status-in-project-snippet-api-endpoints' into 'master'

Resolve "Ensure project snippet feature status in project API endpoints"

See merge request gitlab-org/gitlab!26064

Ensure CleanupOptimisticLockingNulls uses BETWEEN

See merge request gitlab-org/gitlab!26343

Migrated spec/javascripts/search_spec.js to Jest

See merge request gitlab-org/gitlab!26350

fetch won’t send cookies in older browsers
unless you set the credentials init option.
See https://github.com/whatwg/fetch/pull/585

Closes https://gitlab.com/gitlab-org/gitlab/issues/36864

Tweak wiki page title handling

See merge request gitlab-org/gitlab!25647

Fix several ID-dependent specs

Closes #208766

See merge request gitlab-org/gitlab!26372

Fixing code snippet to reference the right environment variable

See merge request gitlab-org/gitlab!25571

Show image file size in diff view

See merge request gitlab-org/gitlab!25734

Allow creating default branch in snippet repositories

Closes #208701

See merge request gitlab-org/gitlab!26294

When querying the project snippets API endpoint, it
should check if the project has snippets enabled and
403 if not

Fix gRPC capitalization

See merge request gitlab-org/gitlab!25298

Add external_pull_request to existing_object_relations

Closes #208128

See merge request gitlab-org/gitlab!26041

Implement uploading functionality for status page storage client for AWS S3

See merge request gitlab-org/gitlab!26034

The S3 client returns platform-agnostic data to allow
an easier way adding a more generic interface later.

Update PostgreSQL with RDS section

See merge request gitlab-org/gitlab!26376