Get the tests deterministic or bust!

Also, explain what the constants are doing and why. And don’t output the log message if it doesn’t apply.

This code should not break other tests because the rate limits are off by default.

Set 0.69.0 instead of latest for codeclimate image

See merge request gitlab-org/gitlab-ce!15445

Refactor  Cluster docs

Closes #39952

See merge request gitlab-org/gitlab-ce!15418

Resolve "lock/confidential issuable sidebar custom svg icons iteration"

Closes #37508

See merge request gitlab-org/gitlab-ce!15372

Isolate the fork network background migrations

See merge request gitlab-org/gitlab-ce!15393

Cache the number of user SSH keys

See merge request gitlab-org/gitlab-ce!15401

When a custom header logo is present, don't show GitLab type logo

See merge request gitlab-org/gitlab-ce!15410

Make sure NotesActions#noteable returns a Noteable in the update action

Closes #40208

See merge request gitlab-org/gitlab-ce!15421

Update license_finder to 3.1.1

Closes #34955 et #40020

See merge request gitlab-org/gitlab-ce!15319

By caching the number of personal SSH keys we reduce the number of
queries necessary on pages such as ProjectsController#show (which can
end up querying this data multiple times).

The cache is refreshed/flushed whenever an SSH key is added, removed, or
when a user is removed.