Bump jupyter-sphinx from 0.4.0 to 0.5.3 (#5421)

Bumps [jupyter-sphinx](https://github.com/jupyter/jupyter-sphinx) from 0.4.0 to 0.5.3.
- [Release notes](https://github.com/jupyter/jupyter-sphinx/releases)
- [Changelog](https://github.com/jupyter/jupyter-sphinx/blob/main/RELEASE.md)
- [Commits](jupyter/jupyter-sphinx@v0.4.0...v0.5.3)

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

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

requirements_docs.txt

@@ -4,7 +4,7 @@ colorcet==3.0.1
 enum-tools==0.11.0
 imageio==2.33.0
 imageio-ffmpeg==0.4.9
-jupyter_sphinx==0.4.0
+jupyter_sphinx==0.5.3
 jupyterlab==4.0.10
 lxml==5.0.0
 meshio==5.3.4