Bumps [stylelint](https://github.com/stylelint/stylelint) from 7.13.0 to 9.9.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint/compare/7.13.0...9.9.0

)

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