Bump jupyterlab from 4.2.5 to 4.4.8 in /requirements

Bumps [jupyterlab](https://github.com/jupyterlab/jupyterlab) from 4.2.5 to 4.4.8.
- [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/[email protected]...@jupyterlab/[email protected])

---
updated-dependencies:
- dependency-name: jupyterlab
  dependency-version: 4.4.8
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/base.txt

@@ -27,7 +27,7 @@ graphviz==0.21
 gunicorn==23.0.0
 html5lib==1.1
 json-logging-py==0.2
-jupyterlab==4.2.5
+jupyterlab==4.4.8
 lxml==4.9.3
 # Support .xls files that use transparent encryption to lock worksheets
 git+https://github.com/nolze/msoffcrypto-tool.git@0f320cbe042b94cfc9087cd0cb693d6ae90d518e