Update python classifier in setup.cfg

As per the current release tested runtime, we test
python version from 3.8 to 3.11 so updating the
same in python classifier in setup.cfg

Change-Id: Ic137b2eecee65d43afeca2c936e195a8652237af

Author: Ghanshyam Mann

setup.cfg

@@ -17,6 +17,8 @@ classifier =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
 
 [files]
 packages =