fix unittest of get_card_data function

Author: vvaezian

tests/test_metabase_api.py

@@ -278,7 +278,7 @@ def test_get_card_data(self):
 
     # filtered data
     res = mb.get_card_data(card_id=2, parameters=[{"type":"string/=","value":['row1 cell1', 'row3 cell1'],"target":["dimension",["template-tag","test_filter"]]}])
-    filtered_data = [{'col1': 'row1 cell1', 'col2': '1'}, {'col1': 'row3 cell1', 'col2': None}]
+    filtered_data = [{'col1': 'row1 cell1', 'col2': 1}, {'col1': 'row3 cell1', 'col2': None}]
     self.assertEqual(res, filtered_data)