Update avatar border to be opaque for better stacking -- EE backport

Closes #32561

See merge request !12940

35087 Fix alignment of controls in mr issuable list

Closes #35087

See merge request !12890

Disable Rails logging in CI test environments

See merge request !12847

Fix queries duration sorting in Performance Bar

Closes #35252

See merge request !12947

Update Prometheus documentation for 9.4

Closes #35129

See merge request !12885

Update Prometheus admin documentation for 9.4 - docs

Closes #35175

See merge request !12903

Signed-off-by: Rémy Coutable <remy@rymai.me>

See https://jtway.co/speed-up-your-rails-test-suite-by-6-in-1-line-13fedb869ec4

Update Gitaly Server Version to 0.21.2

See merge request !12937

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/32561

reset text-align to initial to let elements with dir="auto" align texts to right…

Closes #13281

See merge request !12892

Add a foreign key to `merge_requests.head_pipeline_id`

Closes #34065

See merge request !12837

Resolve "Test/Production environment imparity in nokogiri"

Closes #34915

See merge request !12842

Add RequestCache to cache via RequestStore

See merge request !12920

Protect manual actions against protected tag too

Closes #34927

See merge request !12908

Perf: Improve performance of basic ruby ops in DeclarativePolicy

See merge request !12922

fix transient rspec failure due to Poll.js race condition

Closes #35225

See merge request !12930

Renamed Gitaly services

Closes gitaly#379

See merge request !12854

Update 9.3-to-9.4.md

See merge request !12925

don't treat aborted requests as failures, they are often triggered during unload (e.g after clicking a link)

Refactor variables initialization in dropzone_input.js

Closes #29901

See merge request !12768