Bump notebook from 7.4.2 to 7.4.3 in /classical-ml in the classical-ml group (#743)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

classical-ml/jupyter-requirements.txt

@@ -1,4 +1,4 @@
 jupyterlab==4.4.3
 jupyterhub==5.2.1
-notebook==7.4.2
+notebook==7.4.3
 jupyter-server-proxy>=4.1.2