Bump jupyterlab from 4.2.5 to 4.3.0 (#387)

Bumps [jupyterlab](https://github.com/jupyterlab/jupyterlab) from 4.2.5 to 4.3.0.
- [Release notes](https://github.com/jupyterlab/jupyterlab/releases)
- [Changelog](https://github.com/jupyterlab/jupyterlab/blob/main/CHANGELOG.md)
- [Commits](https://github.com/jupyterlab/jupyterlab/compare/@jupyterlab/[email protected]...@jupyterlab/[email protected])

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

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

requirements_docs.txt

@@ -6,7 +6,7 @@ imageio-ffmpeg==0.5.1
 ipygany==0.5.0
 ipywidgets==8.1.5
 jupyter_sphinx==0.5.3
-jupyterlab==4.2.5
+jupyterlab==4.3.0
 lxml==5.3.0
 matplotlib==3.9.2
 meshio==5.3.5