Build(deps): Bump markdown-it-py from 3.0.0 to 4.0.0

Bumps [markdown-it-py](https://github.com/executablebooks/markdown-it-py) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/executablebooks/markdown-it-py/releases)
- [Changelog](https://github.com/executablebooks/markdown-it-py/blob/master/CHANGELOG.md)
- [Commits](executablebooks/markdown-it-py@v3.0.0...v4.0.0)

---
updated-dependencies:
- dependency-name: markdown-it-py
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

constraints.txt

@@ -26,7 +26,7 @@ jaraco.functools==4.3.0
 jeepney==0.9.0
 Jinja2==3.1.6
 keyring==25.6.0
-markdown-it-py==3.0.0
+markdown-it-py==4.0.0
 MarkupSafe==3.0.3
 mdurl==0.1.2
 more-itertools==10.8.0