message: Fix constant used for credit generation
diff: @@ -124,7 +124,7 @@ void stream_manager::advance() {
  using std::chrono::microseconds;
  auto& cfg = self_->system().config();
  microseconds bc{cfg.streaming_desired_batch_complexity_us};
  - microseconds interval{cfg.streaming_tick_duration_us()};
  + microseconds interval{cfg.streaming_credit_round_interval_us};
  auto& mbox = self_->mailbox();
  auto& qs = get<2>(mbox.queue().queues()).queues();
  // Iterate all queues for inbound traffic.
  