Bump comrak from 0.7.0 to 0.12.1

Bumps [comrak](https://github.com/kivikakk/comrak) from 0.7.0 to 0.12.1.
- [Release notes](https://github.com/kivikakk/comrak/releases)
- [Changelog](https://github.com/kivikakk/comrak/blob/main/changelog.txt)
- [Commits](kivikakk/comrak@0.7.0...0.12.1)

---
updated-dependencies:
- dependency-name: comrak
  dependency-type: direct:production
...

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