build(deps): bump nbconvert from 6.4.5 to 6.5.1

Bumps [nbconvert](https://github.com/jupyter/nbconvert) from 6.4.5 to 6.5.1.
- [Release notes](https://github.com/jupyter/nbconvert/releases)
- [Changelog](https://github.com/jupyter/nbconvert/blob/main/CHANGELOG.md)
- [Commits](jupyter/nbconvert@6.4.5...6.5.1)

---
updated-dependencies:
- dependency-name: nbconvert
  dependency-type: direct:production
...

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

requirements.txt

@@ -22,7 +22,7 @@ sphinx-toggleprompt==0.2.0
 sphinxcontrib-bibtex>=2.5.0
 numpydoc>=1.5.0
 # jupyter dependencies
-nbconvert==6.4.5
+nbconvert==6.5.1
 jupyter_contrib_nbextensions==0.5.1
 tqdm>=4.57.0
 # linters and their dependencies