Bump stylelint from 13.6.0 to 13.6.1
Bump stylelint from 13.6.0 to 13.6.1

Bumps [stylelint](https://github.com/stylelint/stylelint) from 13.6.0 to 13.6.1.
- [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/13.6.0...13.6.1)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
textpattern/textpattern-forum,textpattern/textpattern-forum,textpattern/textpattern-forum