Fix minimum version of typing-extensions (#723)

Author: Dreamsorcerer

setup.cfg

@@ -38,7 +38,7 @@ include_package_data = True
 
 install_requires =
   frozenlist >= 1.1.0
-  typing-extensions >= 4.2; python_version < '3.13'
+  typing-extensions >= 4.4; python_version < '3.13'
 
 
 [pep8]