* revert changes in default primary key strategy
* only change is to pass migration job_arguments to strategies so do
  don't have to hardcode specific group id in the migration strategy
* move traversal ids update inside transaction
* fixed locking of project records
* added clean of namespace gin indexes

Use a different batching strategy for backfilling project
namespaces for a single group.

Adding capabilities to backfill project namespace for each
project. Starting with ability to backfill project namespaces
for a single root namespace first.

Changelog: added

Add deprecation notice for fixup commit messages

See merge request gitlab-org/gitlab!78001

fixup

Convert restrict runner modal button to danger variant

See merge request gitlab-org/gitlab!78380

This converts the "Restrict project for this runner" modal's button to
the danger variant.

E2E: Respect quarantine context for rspec-retry

See merge request gitlab-org/gitlab!78408

Update @vue/test-utils to 1.3.0

See merge request gitlab-org/gitlab!78506

Fix Rails/SaveBang offenses for ee/spec/models - I

See merge request gitlab-org/gitlab!75940

Clarify primary email used for domain restrictions

See merge request gitlab-org/gitlab!78517

Replace Member created state with active

See merge request gitlab-org/gitlab!76653

Add notes about manual jobs

See merge request gitlab-org/gitlab!78292

Environment variables required for sub-commands on TLS-enabled Gitaly

See merge request gitlab-org/gitlab!78424

Remove duplicate information

See merge request gitlab-org/gitlab!78418

This information is now available in a groups access token-specific page

Rename default_owner to first_owner

See merge request gitlab-org/gitlab!78423

Updating documentation linting images for project

See merge request gitlab-org/gitlab!78427

Clarify that migrations are for the database

See merge request gitlab-org/gitlab!78231

Add breaking change warning to Docs UI

See merge request gitlab-org/gitlab!77999

Update contraction styleguide to be more readable

See merge request gitlab-org/gitlab!78388

Ironically we use Do/Don't instead of Do/Do not. Furthermore our
contraction table is a little unreadable. In order to resolve that,
let's combine the rules and examples into one table.

Improve performance of blob policy spec

See merge request gitlab-org/gitlab!78381

Show blocked status label in deployments view

See merge request gitlab-org/gitlab!78234

- bump to the latest version

Deprecation notice for merged_by field

See merge request gitlab-org/gitlab!78494

Add troubleshooting tips for tags not being properly deleted

See merge request gitlab-org/gitlab!78177

Remove note about historical cleanup policies

See merge request gitlab-org/gitlab!78416

Add shared runners chart for groups/namespaces

See merge request gitlab-org/gitlab!78014

Improve structure of Coverage-guided fuzz testing content

See merge request gitlab-org/gitlab!70656

Remove feedback link in discover security point

See merge request gitlab-org/gitlab!78313

New hook type to send log links to Datadog

See merge request gitlab-org/gitlab!74725