Disable method instrumentation for diffs

Closes #52898

See merge request gitlab-org/gitlab-ce!27235

Resolve "Extract EE specific files/lines for some CI files"

See merge request gitlab-org/gitlab-ee!10701

When there a large number of discussions on diffs, the instrumentation
has a significant impact on performance since it's often run in a tight
loop for line position calculation etc. We should disable this since
there are other ways to benchmark performance.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/52898

CE: Resolve "Support fast unit tests in EE"

See merge request gitlab-org/gitlab-ce!26861

Resolve "Support fast unit tests in EE"

Closes #10834

See merge request gitlab-org/gitlab-ee!10544

Add missing team and stage labels in the workflow labels doc

See merge request gitlab-org/gitlab-ce!27224

Quarantine flaky spec in ee/spec/features/projects/settings/protected_environments_spec.rb

See merge request gitlab-org/gitlab-ee!10716

Quarantine failing project import test

See merge request gitlab-org/gitlab-ee!10717

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

Quarantine flaky specs

See merge request gitlab-org/gitlab-ce!27222

Change reason for waiting

See merge request gitlab-org/gitlab-ce!26607

Apparently one has to wait, but DNS can't be involved at this step. (As the DNS records had already to be ready and presumably propagated for the ACME challenge to work.) So let's assume it's the content delivery network serving the certificate that needs some time here.

Use BasicGroupDetails for rendering a board group

See merge request gitlab/gitlab-ee!881

If group entity is not set, all group attributes are
exposed to user which may lead to exposing sensitive attributes.

Add 'bundle exec' to the 'bin/qa' calls in qa/README.md

See merge request gitlab-org/gitlab-ce!27169

Quarantine failing nightly tests

See merge request gitlab-org/gitlab-ce!27174

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

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

Update GitLab Workhorse to v8.5.1

See merge request gitlab-org/gitlab-ce!27217

Externalize strings in app/workers

See merge request gitlab-org/gitlab-ce!27181

- email_receiver_worker
- object_storage/migrate_uploads_worker
- Update PO file

(EE Port) Externalize strings in app/workers

See merge request gitlab-org/gitlab-ee!10697

- email_receiver_worker
- object_storage/migrate_uploads_worker
- Update PO file