Add third party tests for scipy into the package

Author: antonwolfy

setup.py

@@ -49,6 +49,8 @@
             "tests/testing/*.py",
             "tests/third_party/cupy/*.py",
             "tests/third_party/cupy/*/*.py",
+            "tests/third_party/cupyx/*.py",
+            "tests/third_party/cupyx/*/*.py",
         ]
     },
     include_package_data=False,