Shutdown takes time

[ryardley]

pub async fn listen_for_shutdown(bus: Recipient<EnclaveEvent>, handle: JoinHandle<()>) {
    let mut sigterm =
        signal(SignalKind::terminate()).expect("Failed to create SIGTERM signal stream");

    sigterm.recv().await;
    info!("SIGTERM received, initiating graceful shutdown...");

    // Stop the actor system
    let _ = bus.send(EnclaveEvent::from(Shutdown)).await;

    // Abort the spawned task
    handle.abort();

    // Wait for all actor processes to disconnect
    tokio::time::sleep(Duration::from_secs(2)).await;

    // Wait for the task to finish
    let _ = handle.await;

    info!("Graceful shutdown complete");
}

We are waiting 2 seconds then waiting for libbp2p to shutdown in sequence. We should shutdown more quickly