test_array: fix the DeprecationWarning('object.__init__() takes no parameters')

Lib/test/test_array.py

@@ -22,7 +22,7 @@ class ArraySubclass(array.array):
 
 class ArraySubclassWithKwargs(array.array):
     def __init__(self, typecode, newarg=None):
-        array.array.__init__(self, typecode)
+        array.array.__init__(self)
 
 tests = [] # list to accumulate all tests
 typecodes = "ubBhHiIlLfd"