Remove zip_safe flag from setup.cfg

https://setuptools.pypa.io/en/latest/deprecated/zip_safe.html#understanding-the-zip-safe-flag

> It is very unlikely that the values of zip_safe will affect modern
  deployments that use pip for installing packages. Moreover, new users
  of setuptools should not attempt to create egg files using the
  deprecated build_egg command. Therefore, this flag is considered
  obsolete.

setup.cfg

@@ -30,7 +30,7 @@ classifiers =
     Topic :: Internet :: WWW/HTTP
 
 [options]
-zip_safe = false
+include_package_data = true
 python_requires = >=3.7
 install_requires =
     Django >= 3.2