fix numpy

Author: root

setup.py

@@ -21,7 +21,7 @@
     include_package_data=True,
     install_requires=[
         'networkx==2.4',
-        'numpy==1.22.0',
+        'numpy==1.19.0',
         'scipy==1.4.1',
         'pandas==1.0.1',
         'pcst-fast==1.0.7',