message: Log slow ledger `read_framed_entries` operation
diff: @@ -859,6 +859,9 @@ namespace asynchost
  std::optional<std::vector<uint8_t>> read_framed_entries(
  size_t from, size_t to)
  {
  + TimeBoundLogger log_if_slow(
  + fmt::format("Reading framed ledger entries from {} to {}", from, to));
  +
  if ((from <= 0) || (to > last_idx) || (to < from))
  {
  return std::nullopt;
  