fixup: remove-sw-group Python code fixed using ruff

Author: autoruff

plugwise/common.py

@@ -191,7 +191,7 @@ def _get_groups(self) -> dict[str, GwEntityData]:
             group_type = group.find("type").text
             if group_type != "pumping":
                 continue
-            
+
             group_appliances = group.findall("appliances/appliance")
             for item in group_appliances:
                 # Check if members are not orphaned - stretch