test: updated failing test_marketdata_history_by_symbols

Author: Voyz

test/integration/client/test_ibkr_client_i.py

@@ -145,7 +145,7 @@ def test_marketdata_history_by_symbols(self, requests_mock):
                 'low': data['l'],
                 'close': data['c'],
                 'volume': data['v'],
-                'date': datetime.datetime.fromtimestamp(data['t'] / 1000),
+                'date': datetime.datetime.fromtimestamp(data['t'] / 1000, tz=datetime.UTC),
             }
             expected_results[query.symbol] = output
 
@@ -264,4 +264,4 @@ def test_marketdata_unsubscribe_raises_exception_on_failure(self, requests_mock)
         self.client.post = MagicMock(side_effect=lambda url, *args, **kwargs: ExternalBrokerError(status_code=500), __name__='client_get_mock')
 
         with self.assertRaises(ExternalBrokerError):
-            self.client.marketdata_unsubscribe(conids)
+            self.client.marketdata_unsubscribe(conids)