Build(deps): Bump league/commonmark from 1.6.6 to 1.6.7 (#1875)

Bumps [league/commonmark](https://github.com/thephpleague/commonmark) from 1.6.6 to 1.6.7.
- [Release notes](https://github.com/thephpleague/commonmark/releases)
- [Changelog](https://github.com/thephpleague/commonmark/blob/2.1/CHANGELOG-1.x.md)
- [Commits](thephpleague/commonmark@1.6.6...1.6.7)

---
updated-dependencies:
- dependency-name: league/commonmark
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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