test_deque.py: skip test_weakref

Author: cosminbasca

graalpython/lib-python/3/test/test_deque.py

@@ -896,6 +896,7 @@ def test_pickle_recursive(self):
             for d in DequeWithBadIter('abc'), DequeWithBadIter('abc', 2):
                 self.assertRaises(TypeError, pickle.dumps, d, proto)
 
+    @support.impl_detail("finalization", graalvm=False)
     def test_weakref(self):
         d = deque('gallahad')
         p = weakref.proxy(d)