Bump stylelint in the production-dependencies group across 1 directory

Bumps the production-dependencies group with 1 update in the / directory: [stylelint](https://github.com/stylelint/stylelint).


Updates `stylelint` from 16.7.0 to 16.8.1
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@16.7.0...16.8.1)

---
updated-dependencies:
- dependency-name: stylelint
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: production-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>