Bump stylelint from 13.10.0 to 13.11.0

Bumps [stylelint](https://github.com/stylelint/stylelint) from 13.10.0 to 13.11.0.
- [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/13.10.0...13.11.0

)

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