remove dtype=object to fix tests

Author: KevsterAmp

pandas/tests/extension/test_arrow.py

@@ -281,9 +281,7 @@ def test_map(self, data_missing, na_action):
         if data_missing.dtype.kind in "mM":
             mapper = lambda x: x
             result = data_missing.map(mapper, na_action=na_action)
-            expected = map_array(
-                data_missing.to_numpy(dtype=object), mapper, na_action=na_action
-            )
+            expected = map_array(data_missing.to_numpy(), mapper, na_action=na_action)
             tm.assert_numpy_array_equal(result, expected)
         else:
             result = data_missing.map(lambda x: x, na_action=na_action)