Bump mistune from 3.1.4 to 3.2.1 in /notebook_python

Bumps [mistune](https://github.com/lepture/mistune) from 3.1.4 to 3.2.1.
- [Release notes](https://github.com/lepture/mistune/releases)
- [Changelog](https://github.com/lepture/mistune/blob/main/docs/changes.rst)
- [Commits](lepture/mistune@v3.1.4...v3.2.1)

---
updated-dependencies:
- dependency-name: mistune
  dependency-version: 3.2.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

notebook_python/requirements_notebook.txt

@@ -45,7 +45,7 @@ jupyterlab_server==2.27.3
 lark==1.3.0
 MarkupSafe==3.0.3
 matplotlib-inline==0.1.7
-mistune==3.1.4
+mistune==3.2.1
 nbclient==0.10.2
 nbconvert==7.17.1
 nbformat==5.10.4