message: chore: add log to `try_search_orphan_pool`
diff: @@ -1284,6 +1284,11 @@ impl SyncShared {
  pub fn try_search_orphan_pool(&self, chain: &ChainController, parent_hash: &Byte32) {
  let descendants = self.state.remove_orphan_by_parent(parent_hash);
  + debug!(
  + "try accepting {} descendant orphan blocks",
  + descendants.len()
  + );
  +
  for block in descendants {
  // If we can not find the block's parent in database, that means it was failed to accept
  // its parent, so we treat it as an invalid block as well.
  