Bump jupytext from 1.16.3 to 1.16.4

Bumps [jupytext](https://github.com/mwouts/jupytext) from 1.16.3 to 1.16.4.
- [Release notes](https://github.com/mwouts/jupytext/releases)
- [Changelog](https://github.com/mwouts/jupytext/blob/main/CHANGELOG.md)
- [Commits](mwouts/jupytext@v1.16.3...v1.16.4)

---
updated-dependencies:
- dependency-name: jupytext
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

docs/requirements.txt

@@ -12,7 +12,7 @@ setuptools>=65.5.1
 pygments>=2.7.4
 typing_extensions
 myst-parser==3.0.1
-jupytext==1.16.3
+jupytext==1.16.4
 sphinx-favicon==1.0.1
 matplotlib
 pillow>=10.0.1