Update dependency cython to v0.29.33 (#745)

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

Author: renovate[bot]

jupyter-scipy/requirements.txt

@@ -9,7 +9,7 @@ beautifulsoup4==4.11.1
 bokeh==2.4.2
 #Bottleneck==1.3.2 Could not build wheels for Bottleneck which use PEP 517 and cannot be installed directly
 cloudpickle==2.0.0
-cython==0.29.32
+cython==0.29.33
 dask==2022.5.0
 dill==0.3.4
 h5py==3.6.0