Fix test

Author: Viicos

Lib/test/test_typing.py

@@ -7159,7 +7159,7 @@ class C:
         self.assertEqual(get_type_hints(C, format=annotationlib.Format.STRING),
                          {'x': 'undefined'})
         # Make sure using an int as format also works:
-        self.assertEqual(get_type_hints(C, format=3), {'x': 'undefined'})
+        self.assertEqual(get_type_hints(C, format=4), {'x': 'undefined'})
 
     def test_get_type_hints_format_function(self):
         def func(x: undefined) -> undefined: ...