fixup: pw_next_2 Python code reformatted using Black

Author: autoblack

tests/test_smile.py

@@ -468,9 +468,7 @@ async def device_test(self, smile=pw_smile.Smile, testdata=None):
                                         continue
 
                                     assert a_item["state"] == b_item["state"]
-                                    if self.th_prop_selector(
-                                        a_item["id"], thermostat
-                                    ):
+                                    if self.th_prop_selector(a_item["id"], thermostat):
                                         assert (
                                             self.th_prop_selector(
                                                 a_item["id"], thermostat