chore(deps): bump markdown from 3.5.2 to 3.6 (#309)

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.5.2 to 3.6.
- [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@3.5.2...3.6)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements-dev.txt

@@ -8,7 +8,7 @@ flake8-string-format==0.3.0
 flake8-tuple==0.4.1
 groundwork-sphinx-theme==1.1.1
 isort==5.13.2
-markdown==3.5.2
+markdown==3.6
 m2r2==0.3.3.post2
 mock==5.1.0
 pytest==8.1.1