fixup: impr-312 Python code reformatted using Ruff

autoruff · bouwew · commit 5aafcbb3d25c · 2025-08-16T13:48:32.000+02:00
diff --git a/plugwise_usb/helpers/util.py b/plugwise_usb/helpers/util.py
@@ -19,7 +19,7 @@ def validate_mac(mac: str) -> bool:
             return False
     except TypeError:
         return False
-       
+
     try:
         _ = int(mac, 16)
     except ValueError:
