Bump mistune from 3.0.2 to 3.1.2

Bumps [mistune](https://github.com/lepture/mistune) from 3.0.2 to 3.1.2.
- [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...v3.1.2)

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

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

setup.py

@@ -33,7 +33,7 @@
         'Flask-Redis>=0.4.0',
         'Jinja2>=3.1.5',
         'MarkupSafe>=3.0.2',
-        'mistune==3.0.2',  # Pinned: Will be addressed in #192
+        'mistune==3.1.2',  # Pinned: Will be addressed in #192
         'monotonic>=1.6',
         'phonenumbers~=8.13.54',
         'pypdf>= 5.1.0',