add LSPS5 arm to TryFrom conversion for LSPS0Message

- Extend the match in TryFrom<LSPSMessage> to handle LSPSMessage::LSPS5 and explicitly return an error.

Author: martinsaposnic

lightning-liquidity/src/lsps0/msgs.rs

@@ -83,6 +83,7 @@ impl TryFrom<LSPSMessage> for LSPS0Message {
 			LSPSMessage::LSPS0(message) => Ok(message),
 			LSPSMessage::LSPS1(_) => Err(()),
 			LSPSMessage::LSPS2(_) => Err(()),
+			LSPSMessage::LSPS5(_) => Err(()),
 		}
 	}
 }