Bump notebook from 5.7.4 to 7.2.1

Bumps [notebook](https://github.com/jupyter/notebook) from 5.7.4 to 7.2.1.
- [Release notes](https://github.com/jupyter/notebook/releases)
- [Changelog](https://github.com/jupyter/notebook/blob/@jupyter-notebook/[email protected]/CHANGELOG.md)
- [Commits](https://github.com/jupyter/notebook/compare/5.7.4...@jupyter-notebook/[email protected])

---
updated-dependencies:
- dependency-name: notebook
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Otherfiles/doc-requirements.txt

@@ -1,5 +1,5 @@
 art==6.2
-notebook==5.7.4
+notebook==7.2.1
 nbformat==5.0.8
 traitlets==4.3.3
 nbconvert==5.6.1