Bump mistune from 3.0.2 to 3.1.1

Bumps [mistune](https://github.com/lepture/mistune) from 3.0.2 to 3.1.1.
- [Release notes](https://github.com/lepture/mistune/releases)
- [Changelog](https://github.com/lepture/mistune/blob/master/docs/changes.rst)
- [Commits](lepture/mistune@v3.0.2...v3.1.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements-dev.txt

@@ -31,7 +31,7 @@ autopep8==2.3.1
 pre-commit==3.8.0
 
 # HTML changelogs
-mistune==3.0.2
+mistune==3.1.1
 
 # Packaging
 # We only need py2exe on windows.