message: fix clippy warning in on_chain engine
diff: @@ -295,7 +295,7 @@ impl EnvBackend for EnvInstance {
  let enc_input = scope.take_encoded(input);
  let output = &mut scope.take_rest();
  status_to_result(ext::call_chain_extension(func_id, enc_input, output))?;
  - let decoded = decode_to_result(&mut &output[..])?;
  + let decoded = decode_to_result(&output[..])?;
  Ok(decoded)
  }
  }
  