Constrain setuptools version to compatible versions

setuptools removed the `format_command` property of the `bdist` command, which setuptools-cythonize relies on.

This results in the following error:
```
File "D:\win_temp\pip-build-env-avucl34u\overlay\Lib\site-packages\setuptools_cythonize.py", line 166, in set_default_wheel_format
    cls.format_command['wheel'] = ('bdist_wheel', "Python .whl file")
AttributeError: type object 'CythonizeBdist' has no attribute 'format_command'
```

It works with setuptools versions <=63.3.0, so a workaround is to constrain the setuptools version to that.

setup.py

@@ -44,7 +44,7 @@ def main():
         py_modules=["setuptools_cythonize"],
         include_package_data=True,
         install_requires=[
-            'setuptools>=36.2.0',
+            'setuptools>=36.2.0, <=63.3.0',
             'wheel>=0.29.0',
             'cython>=0.25.2'
         ],