Merge branch '4221-board-scope-shouldn-t-persist-1-when-one-selects-any-weight-or-any-milestone' into 'master'

Properly persist "-1" and "null" for board weight

Closes #11529 and #4221

See merge request gitlab-org/gitlab-ee!14180

Remove duplicate info about labelling incident

See merge request gitlab-org/gitlab-ee!14936

Add note about private container registry

See merge request gitlab-org/gitlab-ce!31267

Fix copy config command for Puma

See merge request gitlab-org/gitlab-ce!31314

Add error message to npm registry doc

Closes #61109

See merge request gitlab-org/gitlab-ce!31271

Add contributed error message and possible solution to npm
registry doc, added to a new troubleshooting section added
to the end of the doc.

Docs: Jobs: use curl --location to follow redirects

See merge request gitlab-org/gitlab-ce!31244

Fix whitespace in ci docs

See merge request gitlab-org/gitlab-ce!30655

Many code blocks are 4spaced, and they render in GitLab
without coloring as a result, even though they are
fenced with a language label. If in a list, other items
will render as being in a code block too, even if not
meant to. This fixes all these issues for most docs in
/ci, and cleans up other minor whitespace issues too.

Add Feature.remove

Closes #65363

See merge request gitlab-org/gitlab-ce!31315

Update label documentation

Closes #60160

See merge request gitlab-org/gitlab-ce!31093

Update label documentation with newer screenshots, cut long
lines, and touch up the text, especially the delete label
section. Also adds new screenshots for clarity

- Filter by no weight
- Modify 'board scoped' method
- Use JS objects rather than a series of constants
- Prevent toggling behaviour that leaves dropdown in a weird state

Resolve "Fix typo on clusters_applications_cert_managers factory"

Closes #65297

See merge request gitlab-org/gitlab-ce!31278

- Use BackgroundMigration
- Style/readability
- Use pure function for Weight method
- use say in migration instead of logger
- make update query more concise

- Add changelog file

- Change "none" weight board filter to "any" which is what it was
previously doing (so should have minimal user impact)
- Fix those integration tests

- `null` means "Any weight"
- `-1` means "No weight"
- 0 now means "0 weight"
- Update frontend weight dropdown
- Update backend weight filters
- Add failing tests for weight values
- Fix weight selection for no / any / 0 weight
- Fix issue filtering by weight
- Modify IssuesFinder for no-weight filtering
- Update tests for 'any' filter to include all issues regardless
of weight (even no weight)

Fix mirroring help text

See merge request gitlab-org/gitlab-ce!31348

Add filtering options for vulnerabilities in Dependency List

See merge request gitlab-org/gitlab-ee!14825

CE Port of Update feature flag UI to support percentage rollout

See merge request gitlab-org/gitlab-ce!31240

Update feature flag UI to support percentage rollout

See merge request gitlab-org/gitlab-ee!14538

This commit updates the feature flags pages to includes support for the
percentage rollout strategy.

Fix first-time contributor notes not rendering

Closes #65383

See merge request gitlab-org/gitlab-ce!31340

Add prometheus listen address to whitelist

See merge request gitlab-org/gitlab-ee!14895

- Add to whitelist so that even if local requests from hooks and
services are not allowed, the prometheus manual configuration will
still succeed.

Add prometheus listen address to whitelist

See merge request gitlab-org/gitlab-ce!31148