chore: add hash

Author: Lash-L

roborock/data/code_mappings.py

@@ -111,6 +111,9 @@ def __eq__(self, other: Any) -> bool:
             return self.code == other
         return super().__eq__(other)
 
+    def __hash__(self) -> int:
+        return hash((self.code, self._value_))
+
 
 ProductInfo = namedtuple("ProductInfo", ["nickname", "short_models"])