Fix test_ssl.test_refcycle()

Issue #26590: support.check_warnings() stores warnins, but ResourceWarning now
comes with a reference to the socket object which indirectly keeps the socket
alive.

Lib/test/test_ssl.py

@@ -328,7 +328,7 @@ class BasicSocketTests(unittest.TestCase):
         wr = weakref.ref(ss)
         with support.check_warnings(("", ResourceWarning)):
             del ss
-            self.assertEqual(wr(), None)
+        self.assertEqual(wr(), None)
 
     def test_wrapped_unconnected(self):
         # Methods on an unconnected SSLSocket propagate the original