enhancement #180: ruff formatting

Author: FabienDanieau

src/reachy_mini/daemon/backend/robot/backend.py

@@ -537,7 +537,7 @@ def voltage_ok(
                 if "Input Voltage Error" in err:
                     if voltage_ok(id):
                         err.remove("Input Voltage Error")
-                        
+
                 # To avoid logging empty errors like "Motor 1: []"
                 if len(err) > 0:
                     errors[name] = err

src/reachy_mini/media/audio_sounddevice.py

@@ -198,7 +198,7 @@ def get_output_device_id(self, name_contains: str) -> int:
         self.logger.warning(
             f"No output device found containing '{name_contains}', using default."
         )
-        return self._safe_query_device('output')
+        return self._safe_query_device("output")
 
     def get_input_device_id(self, name_contains: str) -> int:
         """Return the input device id whose name contains the given string (case-insensitive).
@@ -217,10 +217,10 @@ def get_input_device_id(self, name_contains: str) -> int:
         self.logger.warning(
             f"No input device found containing '{name_contains}', using default."
         )
-        return self._safe_query_device('input')
+        return self._safe_query_device("input")
 
     def _safe_query_device(self, kind: str) -> int:
         try:
-            return int(sd.query_devices(None, kind)['index'])
+            return int(sd.query_devices(None, kind)["index"])
         except sd.PortAudioError:
-            return int(sd.default.device[1])
+            return int(sd.default.device[1])