[SWDEV-473498] Pin sympy for >=python3.9 (#1576)

Cherry pick pytorch#133235

Fixes SWDEV-473498

Author: jataylo

requirements.txt

@@ -9,8 +9,7 @@ requests
 setuptools
 types-dataclasses
 typing-extensions>=4.8.0
-sympy==1.12.1 ; python_version == "3.8"
-sympy==1.13.1 ; python_version >= "3.9"
+sympy==1.12.1 ; python_version >= "3.8"
 filelock
 networkx
 jinja2