Replace Ruby 2.1/2.2/2.3 with Ruby latest

Closes #195165

See merge request gitlab-org/gitlab!27268

Remove the git_push_execute_all_project_hooks feature flag

Closes #34241

See merge request gitlab-org/gitlab!27401

Make it easier to find links documentation

See merge request gitlab-org/gitlab!27278

Adding note on DAST security reports

Closes #27313

See merge request gitlab-org/gitlab!27363

docs: Add Pages troubleshooting for /etc/ssl/ca-bundle.pem

See merge request gitlab-org/gitlab!25570

Add Requirements navigation link & placeholder page

Closes #207845

See merge request gitlab-org/gitlab!27086

Fix roadmap epic bar title text in popover

See merge request gitlab-org/gitlab!27391

This *reverse* feature flag has been operating in production for at
least 6 months. It should be safe to remove.

Since there's no behaviour change with the removal of this flag, there
is no need for a changelog entry.

Fix remove special chars from snippet url_to_repo

See merge request gitlab-org/gitlab!27390

Add background worker to publish incident to status page

See merge request gitlab-org/gitlab!26717

Fix project moved message after git operation

Closes #205646

See merge request gitlab-org/gitlab!27341

Epic bars were incorrectly displaying the description
instead of the title

Secure partner onboarding

See merge request gitlab-org/gitlab!25926

Drop 'experimental' references to Puma

See merge request gitlab-org/gitlab!27303

Migrate ee/spec/javascripts/related_items_tree/ to Jest

Closes #118456 and #194302

See merge request gitlab-org/gitlab!27015

Introduce "Reader" abstraction for project import"

Closes #208870

See merge request gitlab-org/gitlab!26481

 - reader can read JSON files for further processing
 - its only implementation would be to read legacy(fat) JSON files
 - split Project::TreeLoader into dedup_legacy_reader and legacy_reader

Fixes stop_review job upon expired artifacts from previous stages

See merge request gitlab-org/gitlab!27258

Move #auto_resolve_prometheus_alert methods from EE to CE

Closes #210524

See merge request gitlab-org/gitlab!27335

Remove unnecessary noop dependencies

See merge request gitlab-org/gitlab!27291

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/194302
Closes https://gitlab.com/gitlab-org/gitlab/issues/118456

Add redirects to telemetry

See merge request gitlab-org/gitlab!27377

Restructure Vale configuration

See merge request gitlab-org/gitlab!27378

Reduce svg icon requests during rendering

Closes #31734

See merge request gitlab-org/gitlab!26974

Move diffs/components/app_spec to Jest

See merge request gitlab-org/gitlab!27234

- Also make Karma's version a proxy to this

Update policy docs

See merge request gitlab-org/gitlab!26993

- Final patch release for 12.0 is 12.0.12, not 12.0.9
- Clarify requirement to stop as at 12.0.x
- Make instruction broader to address future x.0.x releases.

Adds Requirements nav link to Projects nav sidebar and
placeholder page to host Requirements app.

Fixing YML in review app docs and screenshot

See merge request gitlab-org/gitlab!27340

- There's a screenshot
https://docs.gitlab.com/ee/ci/review_apps/#enable-review-apps-button
with incorrect YML. The incorrect YML was also inside the application.
This commit fixes the YML and the screenshot so that it will pass the
CI linting.

Update license compliance policy classifications text in the UI and refactor

See merge request gitlab-org/gitlab!27058