Update jupyterlab requirement from <4.6.0,>=4.1.8 to >=4.5.6,<4.6.0

Updates the requirements on [jupyterlab](https://github.com/jupyterlab/jupyterlab) to permit the latest version.
- [Release notes](https://github.com/jupyterlab/jupyterlab/releases)
- [Changelog](https://github.com/jupyterlab/jupyterlab/blob/main/RELEASE.md)
- [Commits](https://github.com/jupyterlab/jupyterlab/compare/@jupyterlab/lsp@4.1.8...@jupyterlab/lsp@4.5.6)

---
updated-dependencies:
- dependency-name: jupyterlab
  dependency-version: 4.5.6
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 autopep8>=2.1.0,<2.4.0
 flake8>=7.0.0,<7.4.0
-jupyterlab>=4.1.8,<4.6.0
+jupyterlab>=4.5.6,<4.6.0
 bytecorecompiler==1.0.4