fixup! Add members to ParamSpec stub

ParamSpec is new in 3.10

tests/brain/test_brain.py

@@ -678,7 +678,7 @@ def test_typing_no_duplicates_2(self):
         )
         assert len(node.inferred()) == 1
 
-    @test_utils.require_version(minver="3.9")
+    @test_utils.require_version(minver="3.10")
     def test_typing_param_spec(self):
         node = builder.extract_node(
             """
@@ -689,7 +689,7 @@ def test_typing_param_spec(self):
         )
         inferred = next(node.targets[0].infer())
         assert next(inferred.igetattr("args")) is not None
-        assert next(inferred.igetattr("args")) is not None
+        assert next(inferred.igetattr("kwargs")) is not None
 
     def test_collections_generic_alias_slots(self):
         """Test slots for a class which is a subclass of a generic alias type."""