Set 1s server side timeout on Elasticsearch counts

See merge request gitlab-org/gitlab!53435

[RUN AS-IF-FOSS] Resolve deprecate cop_helper exceptions part 3

See merge request gitlab-org/gitlab!53243

- align with standards in rubocop specs.

Revert documentation change for feature flag reference

See merge request gitlab-org/gitlab!53687

Merge branch '299420-refactor-update_location_fingerprint_for_container_scanning_findings_spec' into 'master'

Remove attributes_for from UpdateLocationFingerprintForContainerScanningFindings spec

See merge request gitlab-org/gitlab!53614

Thin compilation error on macOS Big Sur - upgrade thin

See merge request gitlab-org/gitlab!53647

Remove boardStore from GraphQL boards selector [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!53202

- Split boards_selector to deprecate version using boardsStore
- Split board_form to deprecate version using boardsStore

Monkey patch Net::HTTP proxy encoding

See merge request gitlab-org/gitlab!52368

Proxy credentials using special characters
like "%" need to be URL encoded. But Net::HTTP
can't handle those credentials. This is commit
patches Net::HTTP until the upstream patch is
accepted.

Fix e2e tests that fail when the default branch is 'main'

See merge request gitlab-org/gitlab!52041

Tests that push to an empty repo need to specify the branch, otherwise
they'll fail if the local default (e.g., master) is different from
GitLab's default (e.g., main).

E2E test for pipeline with protected variable

See merge request gitlab-org/gitlab!52738

Create epic board lists

See merge request gitlab-org/gitlab!53125

Debian component files

See merge request gitlab-org/gitlab!52885

Add GFM reference format for feature flags [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!53021

This commit adds the GFM reference format for feature flags.

docs: Object pools are supported for internal projects

See merge request gitlab-org/gitlab!53598

326d1ae5 delivered on object pools for
internal projects, on top of public ones. This change updates the
documentation to reflect that.

Cross-link and fix to-do items API page

See merge request gitlab-org/gitlab!53655

These count requests are loaded one per tab every time the search page
loads. This means a single search for one type of document will trigger
up to 7 other searches just to get the counts for the other tabs.

These tab counts are often incredibly expensive requests too especially
relative to the cheaper searches. For example an issue search may take
1s while a blobs count will take 30s. Due to a limited thread pool on
the Elasticsearch side we regularly see these count queries being the
cause of queuing which is slowing down otherwise fast searches on
GitLab.com.

As such we want to set a timeout on these. This timeout is just a
server side Elasticsearch timeout for now which is a soft limit because
Elasticsearch is asynchronous and it may actually take Elasticsearch
longer to realise it's timed out and cancel the query. As such we may
see searches take a few seconds before they timeout even though the
timeout is 1s. This is not perfect but benchmarking in the related issue
shows this still can drastically improve throughput and this is one of
the easiest steps to take now.

One thing to also note about this approach is that users will still see
a count in the event of a timeout. The count may be a partial count and
actually lower than the true count. If they switch to the tab they will
see a true count. I think this is probably still better than displaying
nothing since the main value the tab counts have is showing whether or
not there are searches on that tab at all.

Later we may wish to introduce client side timeouts on our ES client but
it's trickier to accomplish since we use a single client configuration
which has a global timeout for all Elasticsearch queries. Additionally
client side timeouts will result in errors that we may wish to handle
specially to show some indicator on the tab.

Read more at https://gitlab.com/gitlab-org/gitlab/-/issues/301146

Fix ruby keyword warning in gitlab_experiment.rb

See merge request gitlab-org/gitlab!53444

Improve Tracking for 4 experiments in onboarding flow

See merge request gitlab-org/gitlab!53583

docs: Update secure eslint scanner with severity

See merge request gitlab-org/gitlab!53502

Fix doc to use the latest deployment template

See merge request gitlab-org/gitlab!53331

Initial idea for a front matter test

See merge request gitlab-org/gitlab!52844

Add the rudiments of a test that flags Markdown files in the doc/
directory that do not have front matter. Files without front matter
won't show up in the Technical Writing team's calculations.

This page was - bewilderingly - missing a cross-link back to the main
page about to-dos, and it was also using an older version of the
wording.

Fix.

Added docs for requesting a new review

See merge request gitlab-org/gitlab!53377

Remove a screenshot that is better handled by phrasing.
Convert narration to a procedure, and add some extra missing steps.
Move a subheading to the bottom of the page, as it's only required
for one version of GitLab.

Update rollout issue links for Code Review flags

See merge request gitlab-org/gitlab!53621

Fix test code snippet for tracking Redis events

See merge request gitlab-org/gitlab!53603

Add links from 2FA feature flags to affected features

See merge request gitlab-org/gitlab!53277

Database testing using thin-clones

See merge request gitlab-org/gitlab!51347

Relates to
https://gitlab.com/gitlab-org/database-team/team-tasks/-/issues/128