Bump mistune from 3.2.1 to 3.3.0 in /docs (#139)

Bumps [mistune](https://github.com/lepture/mistune) from 3.2.1 to 3.3.0.
- [Release notes](https://github.com/lepture/mistune/releases)
- [Changelog](https://github.com/lepture/mistune/blob/main/docs/changes.rst)
- [Commits](lepture/mistune@v3.2.1...v3.3.0)

---
updated-dependencies:
- dependency-name: mistune
  dependency-version: 3.3.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -24,7 +24,7 @@ jupyter-core==4.11.2
 jupyterlab-pygments==0.1.2
 lxml==6.1.0
 MarkupSafe==1.1.1
-mistune==3.2.1
+mistune==3.3.0
 nbclient==0.5.1
 nbconvert==7.17.1
 nbformat==5.0.8