build(deps): bump posthtml-safe-class-names from 4.1.0 to 4.1.1

Bumps [posthtml-safe-class-names](https://github.com/posthtml/posthtml-safe-class-names) from 4.1.0 to 4.1.1.
- [Release notes](https://github.com/posthtml/posthtml-safe-class-names/releases)
- [Commits](posthtml/posthtml-safe-class-names@v4.1.0...v4.1.1)

---
updated-dependencies:
- dependency-name: posthtml-safe-class-names
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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