fix(source/torridge): fix date parts unpacking

I don't know how I managed to do break it between the tests passing and committing the source, but apparently I did.

custom_components/waste_collection_schedule/waste_collection_schedule/source/torridge_gov_uk.py

@@ -123,7 +123,7 @@ def fetch(self):
                     if len(date_parts) < 3:
                         raise ValueError("Unexpected date format")
 
-                    bin_day_num, bin_month = date_parts
+                    _, bin_day_num, bin_month = date_parts
                     if bin_month not in MONTHS:
                         raise ValueError(f"Unknown month: {bin_month}")