Update Gitaly to 12.9.0-rc5

Closes gitaly#2448

See merge request gitlab-org/gitlab!27631

Replace Test Coverage Visualization performance issue link

See merge request gitlab-org/gitlab!27627

Move Prometheus related cluster classes from EE to CE

Closes #210539

See merge request gitlab-org/gitlab!27422

Fix leaky rspec constants

See merge request gitlab-org/gitlab!27630

Fix scoped labels rendering in emails

See merge request gitlab-org/gitlab!27294

Change name of spec file to match actual file name

See merge request gitlab-org/gitlab!27851

Add canonical version of user's primary email addresses

Closes #205383

See merge request gitlab-org/gitlab!27722

- Add user association
- Add model
- Add canonicalize_email method
- Add tests
- Default to only gmail.com addresses

Replace underscore/lodash in ee/projects

Closes #210275

See merge request gitlab-org/gitlab!27829

Merge branch '210276-replace-underscore-with-lodash-for-ee-app-assets-javascripts-pages-operations' into 'master'

Replace underscore with lodash

Closes #210276

See merge request gitlab-org/gitlab!27170

Migrate spec/javascripts/u2f/ to Jest

Closes #194257

See merge request gitlab-org/gitlab!26735

Added GitLab tier upgrade section

See merge request gitlab-org/gitlab!27763

Fix code block in aws serverless doc

See merge request gitlab-org/gitlab!26953

Docs: fix spelling errors

See merge request gitlab-org/gitlab!26709

Fix spelling errors, or wrap non-words in code tags when feasible.`

Add Vale rule for version text

See merge request gitlab-org/gitlab!27636

First round of karma to jest migration for boards

See merge request gitlab-org/gitlab!27607

- board_blank_state
- board_new_issue
- board_form
- issue_spec
- mock_data

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/27607

Create cluster management project automatically

See merge request gitlab-org/gitlab!23946

Also fixes violations of the new rule.

This logic isn't currently used by any process, but
eventually a management project will be created when
a user installs an application to the cluster (if
there is no management project already specified).
This will usually be when installing the first
application to the cluster, but could also be on
subsequent installs if the project is somehow unset
or deleted.

The project is currently created empty, the next
step will be to populate it with a sample cluster
management repository.

Add postgres to Vale substitutions rule

See merge request gitlab-org/gitlab!27764

Declare languages for code blocks

See merge request gitlab-org/gitlab!27727

Specifying languages for more code blocks.

Resolve "Docs feedback: Specify location of Dockerfile"

Closes #212210 and #212211

See merge request gitlab-org/gitlab!27807

Add atomic and cleanup-on-fail parameters

See merge request gitlab-org/gitlab!27721

Optimize projects_enforcing_code_owner_approval query

See merge request gitlab-org/gitlab!27526

Fix bug issue template markdown handling

See merge request gitlab-org/gitlab!27808

Rename time window params

Closes #196986

See merge request gitlab-org/gitlab!26333

Adds the GEO_DB_USER to the psql command in the FDW docs

See merge request gitlab-org/gitlab!27694

Use existing regexp validator

See merge request gitlab-org/gitlab!27672

Add E2E test to create repository on specific Praefect storage

See merge request gitlab-org/gitlab!27295

The intention of the test is to make sure a project can be
created on a Praefect storage node, not just any additional
storage.