fix: don't assume msg reference always has msg id (#1423)

Co-authored-by: Astrea49 <25420078+Astrea49@users.noreply.github.com>

Author: AstreaTSS

interactions/models/discord/message.py

@@ -497,7 +497,7 @@ def _process_dict(cls, data: dict, client: "Client") -> dict:  # noqa: C901
             _m = client.cache.place_message_data(ref_message_data)
             data["referenced_message_id"] = _m.id
         elif msg_reference := data.get("message_reference"):
-            data["referenced_message_id"] = msg_reference["message_id"]
+            data["referenced_message_id"] = msg_reference.get("message_id")
 
         if "interaction" in data:
             data["interaction"] = MessageInteraction.from_dict(data["interaction"], client)