pythongh-115254: Fix test_property with -00 mode (python#115255)

Lib/test/test_property.py

@@ -224,6 +224,7 @@ class PropertySubSlots(property):
 
 class PropertySubclassTests(unittest.TestCase):
 
+    @support.requires_docstrings
     def test_slots_docstring_copy_exception(self):
         # A special case error that we preserve despite the GH-98963 behavior
         # that would otherwise silently ignore this error.