Bump @primer/stylelint-config from 12.9.1 to 12.9.2 (#2604)

Bumps [@primer/stylelint-config](https://github.com/primer/stylelint-config) from 12.9.1 to 12.9.2.
- [Release notes](https://github.com/primer/stylelint-config/releases)
- [Changelog](https://github.com/primer/stylelint-config/blob/main/CHANGELOG.md)
- [Commits](primer/stylelint-config@v12.9.1...v12.9.2)

---
updated-dependencies:
- dependency-name: "@primer/stylelint-config"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>