[3.12] gh-115274: Fix direct invocation of testmock/testpatch.py (GH-115275) (#115280)

gh-115274: Fix direct invocation of `testmock/testpatch.py` (GH-115275)
(cherry picked from commit f8e9c57)

Co-authored-by: Nikita Sobolev <[email protected]>

Author: miss-islington

Lib/test/test_unittest/testmock/testpatch.py

@@ -1912,7 +1912,7 @@ def foo(x=0):
 
         with patch.object(foo, '__module__', "testpatch2"):
             self.assertEqual(foo.__module__, "testpatch2")
-        self.assertEqual(foo.__module__, 'test.test_unittest.testmock.testpatch')
+        self.assertEqual(foo.__module__, __name__)
 
         with patch.object(foo, '__annotations__', dict([('s', 1, )])):
             self.assertEqual(foo.__annotations__, dict([('s', 1, )]))