Bump markdown from 3.10 to 3.10.2

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.10 to 3.10.2.
- [Release notes](https://github.com/Python-Markdown/markdown/releases)
- [Changelog](https://github.com/Python-Markdown/markdown/blob/master/docs/changelog.md)
- [Commits](Python-Markdown/markdown@3.10.0...3.10.2)

---
updated-dependencies:
- dependency-name: markdown
  dependency-version: 3.10.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]