Wait for AJAX requests at the JS level in addition to wait for requests at the middleware level

Closes #29836

See merge request !10688

Document pipeline grouping

Closes #28317 and #29176

See merge request !10969

Document wikis

Closes #7028

See merge request !11041

Resolve "Unnecessary padding along left side of assignees dropdown"

Closes #31057

See merge request !10767

Re-enable ref operations with gitaly after not-found fix

See merge request !10773

Enable `RSpec/DescribedClass` cop and correct violations

See merge request !10930

Also implemented same behavior on the Issue Boards assignee block.
Fixed the default state for search/filter dropdown for issuables.

Remove unused initializer

See merge request !11036

Reject more reserved paths

Closes #30272

See merge request !10413

#31560 Add repo parameter to gitaly:install and workhorse:install

Closes #31560

See merge request !10979

Metrics deployment history

Closes #26914

See merge request !10649

Docs branches should run static analysis

See merge request !11035

Revert "Shorten and improve some job names"

See merge request !11037

Because it also won't match the sophisticated format we have for
detecting reserved names. We don't want to confuse the user with 2
error messages

Add download button to project snippets

See merge request !11004

This reverts commit f2fc716c