feat: reduce ServeHealth event to every 300s to reduce event volume (#362)

crates/tabby/src/serve/mod.rs

@@ -183,7 +183,7 @@ fn start_heartbeat(args: &ServeArgs) {
     tokio::spawn(async move {
         loop {
             usage::capture("ServeHealth", &state).await;
-            sleep(Duration::from_secs(60)).await;
+            sleep(Duration::from_secs(300)).await;
         }
     });
 }