Fix typing hint

Author: hit9

lib/py/bitprotolib/bp.py

@@ -191,7 +191,9 @@ class MessageBase(Accessor):
 
     def to_dict(self) -> Dict[str, Any]:
         """Converts this message to a dict."""
-        return asdict(self, dict_factory=getattr(self, "dict_factory", dict))
+        return asdict(
+            self, dict_factory=getattr(self, "dict_factory", dict)  # type:ignore
+        )
 
     def to_json(
         self, indent: Optional[int] = None, separators: Optional[Tuple[str, str]] = None