build(deps): bump jupyterlab from 4.2.5 to 4.3.0 in /ci/builder

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/lsp@4.2.5...@jupyterlab/lsp@4.3.0)

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

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

ci/builder/requirements.txt

@@ -18,7 +18,7 @@ ipympl==0.9.3
 ipywidgets==8.1.5
 junit-xml==1.9
 junitparser==3.1.2
-jupyterlab==4.2.5
+jupyterlab==4.3.0
 jupyter-black==0.3.4
 kubernetes==25.3.0
 kubernetes-stubs==22.6.0.post1