fix: replace Rust CI with Python CI workflow

setup.py

@@ -1,11 +1,8 @@
-"""Setup configuration for json-to-openapi package."""
 from setuptools import setup, find_packages
 
 with open("README.md", "r", encoding="utf-8") as fh:
     long_description = fh.read()
 
-packages = find_packages()
-
 setup(
     name="json-to-openapi",
     version="1.0.0",
@@ -15,7 +12,7 @@ setup(
     long_description=long_description,
     long_description_content_type="text/markdown",
     url="https://github.com/example/json-to-openapi",
-    packages=packages,
+    packages=find_packages(),
     classifiers=[
         "Development Status :: 4 - Beta",
         "Intended Audience :: Developers",