fix: "device.fn" was removed in evdev 1.9.0. Use "device.path" as adviced

Author: AlvinSchiller

src/jukebox/components/rfid/hardware/generic_usb/generic_usb.py

@@ -66,7 +66,7 @@ def _is_keyboard(device: evdev.InputDevice) -> bool:
         is_keyboard_res = mandatory_keys.issubset(device_key_list) and reserved_key.isdisjoint(device_key_list)
     except KeyError:
         is_keyboard_res = False
-    logger.debug(f"is_keyboard test for '{device.name}' at '{device.fn}' is '{is_keyboard_res}'")
+    logger.debug(f"is_keyboard test for '{device.name}' at '{device.path}' is '{is_keyboard_res}'")
     return is_keyboard_res