Bump jupyterlab from 3.5.2 to 3.6.8 in /jupyter

Bumps [jupyterlab](https://github.com/jupyterlab/jupyterlab) from 3.5.2 to 3.6.8.
- [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
...

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

Author: dependabot[bot]

jupyter/poetry.lock

@@ -8,7 +8,7 @@ authors = ["Nick Jones <[email protected]>"]
 python = "^3.10"
 requests = "^2.28.2"
 pandas = "^1.5.3"
-jupyterlab = "^3.5.2"
+jupyterlab = "^3.6.8"
 
 [tool.poetry.dev-dependencies]