Applying CE Patch for global deferred JS loading

See merge request !2569

Exclude sidekiq queues from execution in sidekiq-cluster

Closes #2893

See merge request !2571

Removed EE specific inline JS

See merge request !2592

EE: Don't include EmailHelpers manually, pick with rspec

See merge request !2591

Mention EES in protected branches feature

See merge request !2590

Port of fix-oauth-checkboxes to EE

See merge request !2588

Fix docs for using object storage for storing artifacts

See merge request !2580

`:mailer` is needed to pick it easily, while
`type: :mailer` is needed for picking it automatically for
tests located in spec/mailers/*_spec.rb

It's a bit complicated in spec/services/notification_service_spec.rb
but we'll leave it alone for now.

Make dropdown style on project page consistent

See merge request !2577

Make dropdown style on project page consistent

Closes #35778

See merge request !13193

CE upstream - Friday

Closes gitaly#408, gitaly#411, and #1827

See merge request !2554

Don't send rejection mails for all auto-generated mails

Closes #28472

See merge request !13254

Ensure we run installation Rake tasks in a clean env in TestEnv

Closes #35859

See merge request !13249

This would be much more accurate. We assume this is an
auto-generated email if such header is provided, and
the value is not "no". It could also be: "auto-generated",
"auto-replied", or other values from extension. It seems
that only "no" could mean that this is sent by a human.

See: https://tools.ietf.org/html/rfc3834

Do not validate CSRF token in API unless needed

Closes #35705

See merge request !13256