message: chore: print disconnect reason as info level log
  The disconnect reason from peer is a useful information to check out network
  issues.
diff: -use ckb_logger::debug;
  +use ckb_logger::{debug, info};
  use p2p::{
  context::{ProtocolContext, ProtocolContextMutRef},
  traits::ServiceProtocol,
  @@ -13,7 +13,7 @@ impl ServiceProtocol for DisconnectMessageProtocol {
  fn received(&mut self, context: ProtocolContextMutRef, data: bytes::Bytes) {
  let session_id = context.session.id;
  if let Ok(message) = String::from_utf8(data.to_vec()) {
  - debug!(
  + info!(
  "Received disconnect message from peer={}: {}",
  session_id, message
  );
  