fix python version specification

Author: sfluegel

setup.py

@@ -14,7 +14,7 @@
     author_email="[email protected]",
     description="",
     zip_safe=False,
-    python_requires="==3.11",
+    python_requires=">=3.9, <3.12",
     install_requires=[
         "certifi",
         "idna",