* 64722-mg-export-frontend-fixtures:
  Add missing static fixture
  Move frontend fixtures into spec/frontend
  Save fixtures as pipeline artifacts
  Move frontend fixtures to tmp/tests
  Rename the karma:fixtures task
  Backport line changes from EE
  Don't kill the fixtures directory between tests
  Prefer an absolute path over cwd()
  Resolve annoying deprecation warnings

Moves every fixture source file from
spec/javascripts to spec/frontend

Introduces frontend:fixtures rake task to replace
karma:fixtures and update documentation and CI scripts
to match

EE-specific line changes were introduced in the following MR:
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/12680

This change resolves most of them

DEPRECATION WARNING: The success? predicate is deprecated and will be
removed in Rails 6.0. Please use successful? ...

Adds chaos endpoints to Sidekiq

Closes #64663

See merge request gitlab-org/gitlab-ce!30814

Add issue link to disabled JUnit reports

See merge request gitlab-org/gitlab-ce!30912

Fix QA documentation to refer to perform method

See merge request gitlab-org/gitlab-ce!30872

The documentation referred to the .act method
This MR changes this to refer to the preferred
.perform method

CE port for milestones should not be set on epics issue promotion

See merge request gitlab-org/gitlab-ce!30633

Resolve "Milestones should not be set on epics (issue promotion)"

Closes #10270

See merge request gitlab-org/gitlab-ee!14532

Fix bug in dashboard display of closed milestones

Closes #59381

See merge request gitlab-org/gitlab-ce!30820

Enable RuboCop syntax linting in haml-lint

Closes #64753

See merge request gitlab-org/gitlab-ce!30903

This allows the chaos endpoints to be invoked in Sidekiq so that this
environment can be tested for resilience.

Fix broken handling for outdated test repos

See merge request gitlab-org/gitlab-ce!30893

Security gates within MRs - Sync security report_approvers to pipeline security reports

See merge request gitlab-org/gitlab-ee!13109

Adds SyncSecurityReportsToReportApprovalRulesWorker responsible
for conditionally zero'ing out `approvals_required` when a report
contains no high-severity or critical-severity vulnerabilities

Update usage ping cron behavior

See merge request gitlab-org/gitlab-ce!30842

Improves add_timestamps_with_timezone helper

See merge request gitlab-org/gitlab-ce!30720

This improves the `add_timestamps_with_timezone` helper by allowing the
column names to be configured. This has the advantage that unnecessary
columns can be avoided, saving space.

A helper for removing the columns is also provided, to be used in the
`down` method of migrations.

Add Rugged calls and duration to API and Rails logs

Closes #64676

See merge request gitlab-org/gitlab-ce!30871