message: fix InvalidParameter2 vs 3
diff: @@ -752,7 +752,7 @@ pub extern fn indy_unpack_message(
  //serialize JWE to struct
  let jwe_struct: JWE = match serde_json::from_slice(jwe_data.as_slice()) {
  Ok(x) => x,
  - Err(_) => return ErrorCode::CommonInvalidParam2
  + Err(_) => return ErrorCode::CommonInvalidParam3
  };
  let result = CommandExecutor::instance().send(Command::Crypto(CryptoCommand::UnpackMessage(
  