Interruptible builds for redundant pipelines

See merge request gitlab-org/gitlab-ce!23464

Since it is not possible to dynamically detect if a job is automatically
cancellable or not, a this new attribute is necessary. Moreover, it let
the maintainer of the repo to adjust the behaviour of the auto cancellation
feature to match exactly what he needs.

Update doc guidelines with markdownlint info

See merge request gitlab-org/gitlab-ce!32273

Move details of markdownlint mostly to the documentation
index for a SSoT, and link apropriately

Extract /internal/allowed API Actor logic out

See merge request gitlab-org/gitlab-ce!31564

EE->CE: Structure for "Require code owner approval on pushes"

See merge request gitlab-org/gitlab-ce!32607

These are the structural changes for supporting the EE feature of moving
"code_owner_approval_required" state from existing on a project to being
on the protected branches individually, allowing for CODEOWNER
validation on push events.

Add "Require code owner approval" setting to protected branches

See merge request gitlab-org/gitlab-ee!14900

Add helper to wait for axios requests in frontend tests

Closes #60972

See merge request gitlab-org/gitlab-ce!30887

Add two methods to the axios_utils Jest mock:

- `waitFor(url)`, which returns a Promise that resolves when the
  next request to `url` finishes.
- `waitForAll()`, which returns a Promise that resolves when all
  pending requests finish.

Add helpers to wait for axios requests

See merge request gitlab-org/gitlab-ee!15896

Add two methods to the axios_utils Jest mock:

- `waitFor(url)`, which returns a Promise that resolves when the
  next request to `url` finishes.
- `waitForAll()`, which returns a Promise that resolves when all
  pending requests finish.

Resolve "Migrate spec/javascripts/ide/components/preview/clientside_spec.js to Jest"

See merge request gitlab-org/gitlab-ce!32294

Remove unused classes for report comparison logic

See merge request gitlab-org/gitlab-ee!16045

Remove servies for comparing sec reports in MR widget
Remove depricated serializers

Refactor new undo_cleanup_concurrent_column_rename migration helper

See merge request gitlab-org/gitlab-ce!32343

- Move code for creating a new column from old into a function so that
it can be reused.
- Also add comments above the methods.

Merge branch '66150-remove-dynamically-constructed-feature-flags-starting-with-prometheus_transaction_' into 'master'

Resolve "Remove dynamically constructed feature flags starting with `prometheus_transaction_`"

Closes #66150

See merge request gitlab-org/gitlab-ce!32395

Makes custom Pages domain open as external link in new tab

Closes #66067

See merge request gitlab-org/gitlab-ce!32130

Merge branch 'docs/9102-hide-dismissed-vulnerabilities-in-the-group-security-dashboard' into 'master'

Update security dashboards documentation

See merge request gitlab-org/gitlab-ce!32674

Reflect the addition of a "hide dismissed vulnerabilities" toggle in
security dashboards, see https://gitlab.com/gitlab-org/gitlab-ee/issues/9102

Do not show 'automatically removed' for manually removed labels

Closes #12952

See merge request gitlab-org/gitlab-ee!16079

Add .gitlab/ci/frontend.gitlab-ci.yml to frontend review roulette

See merge request gitlab-org/gitlab-ce!32466

Adjust routable metric

See merge request gitlab-org/gitlab-ce!32591

Avoid checking dns rebind protection in validation

Closes #66723

See merge request gitlab-org/gitlab-ce!32577

Those feature flags were always enabled so we can remove them safely.