Update dependency jupyterlab to v4.3.4 (#350)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

examples/example-notebooks/requirements.txt

@@ -1,2 +1,2 @@
-jupyterlab==4.3.3
+jupyterlab==4.3.4
 kotlin-jupyter-kernel==0.12.0.322