Bump stylelint from 13.2.1 to 13.13.1

Bumps [stylelint](https://github.com/stylelint/stylelint) from 13.2.1 to 13.13.1.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/master/CHANGELOG.md)
- [Commits](stylelint/stylelint@13.2.1...13.13.1)

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