refactor: bind Prometheus listener to dynamic address

ghost-crab/src/logs/prometheus.rs

@@ -120,7 +120,7 @@ impl Prometheus {
 
         tokio::spawn(async move {
             let app = Router::new().route("/metrics", get(metrics_handler)).with_state(state);
-            let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
+            let listener = tokio::net::TcpListener::bind(address.as_str()).await.unwrap();
             println!("Metrics server listening on {:?}", listener);
             axum::serve(listener, app).await.unwrap();
         });