[EZ] Update minversion to 3.9.0 (pytorch#139085)

Fixes pytorch#138979

Pull Request resolved: pytorch#139085
Approved by: https://github.com/kit1980, https://github.com/huydhn, https://github.com/seemethere, https://github.com/Skylion007

Author: malfet

setup.py

@@ -232,7 +232,7 @@
 BUILD_LIBTORCH_WHL = os.getenv("BUILD_LIBTORCH_WHL", "0") == "1"
 BUILD_PYTHON_ONLY = os.getenv("BUILD_PYTHON_ONLY", "0") == "1"
 
-python_min_version = (3, 8, 0)
+python_min_version = (3, 9, 0)
 python_min_version_str = ".".join(map(str, python_min_version))
 if sys.version_info < python_min_version:
     print(