⬆️ bump jupyterlab from 4.1.6 to 4.2.0

Bumps [jupyterlab](https://github.com/jupyterlab/jupyterlab) from 4.1.6 to 4.2.0.
- [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@4.1.6...@jupyterlab/lsp@4.2.0)

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

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