Bump jupyterlab from 4.3.5 to 4.5.7 in /community/chat-and-rag-glean

Bumps [jupyterlab](https://github.com/jupyterlab/jupyterlab) from 4.3.5 to 4.5.7.
- [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@4.3.5...@jupyterlab/lsp@4.5.7)

---
updated-dependencies:
- dependency-name: jupyterlab
  dependency-version: 4.5.7
  dependency-type: direct:production
...

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

Author: dependabot[bot]

community/chat-and-rag-glean/pyproject.toml

@@ -8,7 +8,7 @@ dependencies = [
     "chroma>=0.2.0",
     "gradio>=5.13.2",
     "gradio-log>=0.0.8",
-    "jupyterlab>=4.3.5",
+    "jupyterlab>=4.5.7",
     "langchain>=0.3.17",
     "langchain-chroma>=0.2.1",
     "langchain-nvidia-ai-endpoints>=0.3.8",