Add setuptools to install_requires (Scony#259)

Author: meghprkh

setup.py

@@ -35,6 +35,7 @@
  "docopt-ng==0.8.1",
  "pyyaml>=5.1",
  "radon==6.0.1",
+ "setuptools",
  ],
  python_requires=">=3.7",
  classifiers=[