Merge branch '321677-enable-and-remove-pages_serve_with_zip_file_protocol-feature-flag' into 'master'

Add rollout issue for pages_serve_with_zip_file_protocol FF

See merge request gitlab-org/gitlab!54330

Memoize the fork suggestion button partial

See merge request gitlab-org/gitlab!53256

Remove approvalSuggestions feature flag [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!54271

Fix force-routing to Gitaly primary with empty hook env

See merge request gitlab-org/gitlab!54317

Fix worker paths in Pipeline Editor

See merge request gitlab-org/gitlab!54320

Turn threat_monitoring_alerts feature flag on by default

See merge request gitlab-org/gitlab!53776

Add post migration to backfill projects updated at after repository move

See merge request gitlab-org/gitlab!53845

Allow setting Gitaly feature flags for individual projects

See merge request gitlab-org/gitlab!53387

Track CI minutes on a monthly basis at project level

See merge request gitlab-org/gitlab!53460

Introduce a new table `ci_namespace_monthly_usages` that
tracks CI minutes usage on a monthly basis.
Refactor UpdateBuildMinutesService to use both new and
legacy tracking until the new one is viable.

Refactor repository storage paths topic

See merge request gitlab-org/gitlab!54048

Fix /-/readiness probe for Puma Single

See merge request gitlab-org/gitlab!53708

Add docs about unlinking an account if it is the single owner of a group

See merge request gitlab-org/gitlab!53944

Fix flaky compliance spec

See merge request gitlab-org/gitlab!54291

Remove changelog_api feature flag [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!53890

Apply new GitLab UI for buttons and card in admin/license

See merge request gitlab-org/gitlab!52408

Fix search functionality in Jira issues list

See merge request gitlab-org/gitlab!54312

Wait for requests in `edit_note` spec helper

See merge request gitlab-org/gitlab!54301

When we call Gitaly and set feature flags, we can't easily guarantee
that we can get the current project (if there even is such a thing).
However, there are some cases where we do have easy access to a project,
if one exists: when we're performing Git HTTP or SSH operations.

This allows - but doesn't require - Gitaly feature flags to be set for a
project, as long as the call site supports it. In this commit, that
means the two cases above (Git HTTP and SSH).

Update workhorse to v8.63.0

See merge request gitlab-org/gitlab!54315

Track ci minutes on a monthly basis [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!52915

Fix flaky epics_finder_spec race condition

See merge request gitlab-org/gitlab!54183

Remove deny disk access feature flag [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!53703

Migrate import_projects application to gitlab-ui

See merge request gitlab-org/gitlab!53976

- Use gitlab-ui CSS styles and components

Document DAST saved scans feature

See merge request gitlab-org/gitlab!54046

Change the workers paths to prevent ensure they are loaded when using a
CDN in the Pipeline Editor

Enable sorting diffs by default

See merge request gitlab-org/gitlab!54210

Remove catfile feature flag [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!53702

Fix N+1 Issue with loading approval rules

See merge request gitlab-org/gitlab!52364

Move it to request spec since we are transitioning controller
specs to request specs. Also, query counter should be used in
request specs as it is possible to return false positives when
used in controller specs.

With commit edab619a (gitaly: Fix access checks with transactions and
quarantine environments, 2021-02-05), we started injecting a flag into
Gitaly requests to force-route to the primary Gitaly node in case a hook
environment is set in order to not break access to quarantined objects.
Turns out that this change breaks read distribution though as now all
requests are force-routed to the primary.

The cause of this is trivial enough: the SafeRequestStore returns an
empty hash if it wasn't set up to contain anything. Given that the
checks whether a HookEnv was set up only checked whether there was
something in the SafeRequestStore, they thus always thought that
requests were running in the context of a HookEnv.

Fix the issue by checking that the returned value is non-empty.

Add all metrics from event dictionary to metric yml files for Product Intelligence group

See merge request gitlab-org/gitlab!51974

Pipeline Graph Structural Update: Update Rspec Tests

See merge request gitlab-org/gitlab!52122

* Removed stubbed false flags
* Updates selectors for feature specs
* Add tests for both flag states in ee

Enable ci_config_merged_tab feature by default

See merge request gitlab-org/gitlab!54223