gh-121220: Mark test_threaded_weak_value_dict_copy() as CPU-heavy (#121221)

Mark test_threaded_weak_value_dict_copy() and
test_threaded_weak_key_dict_copy() of test_weakref as
CPU-heavy tests

Author: Eclips4

Lib/test/test_weakref.py

@@ -2025,6 +2025,7 @@ def pop_and_collect(lst):
             raise exc[0]
 
     @threading_helper.requires_working_threading()
+    @support.requires_resource('cpu')
     def test_threaded_weak_key_dict_copy(self):
         # Issue #35615: Weakref keys or values getting GC'ed during dict
         # copying should not result in a crash.
@@ -2038,6 +2039,7 @@ def test_threaded_weak_key_dict_deepcopy(self):
         self.check_threaded_weak_dict_copy(weakref.WeakKeyDictionary, True)
 
     @threading_helper.requires_working_threading()
+    @support.requires_resource('cpu')
     def test_threaded_weak_value_dict_copy(self):
         # Issue #35615: Weakref keys or values getting GC'ed during dict
         # copying should not result in a crash.