limit numpy<1.23.0

setup.py

@@ -36,7 +36,7 @@ setup(
     platforms='any',
     install_requires=[
         'aplpy', 'astropy', 'bdsf', 'h5py', 'losoto', 'lsmtool',
-        'matplotlib', 'numpy', 'python-casacore', 'RMextract', 'scipy'],
+        'matplotlib', 'numpy<1.23.0', 'python-casacore', 'RMextract', 'scipy'],
     scripts=glob.glob('scripts/*'),
     data_files=data_files,
     # explicitly declare packages so setuptools does not attempt auto discovery