Bump markdown-it from 12.0.5 to 12.3.2 (#55)

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) from 12.0.5 to 12.3.2.
- [Release notes](https://github.com/markdown-it/markdown-it/releases)
- [Changelog](https://github.com/markdown-it/markdown-it/blob/master/CHANGELOG.md)
- [Commits](markdown-it/markdown-it@12.0.5...12.3.2)

---
updated-dependencies:
- dependency-name: markdown-it
  dependency-type: direct:development
...

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