Update app.py

app.py

@@ -48,7 +48,7 @@ def _launch_zerogpu_probe_app():
     # non-blocking so it doesn't take over the main thread.
     _probe_demo.launch(
         server_name="0.0.0.0",
-        server_port=int(os.environ.get("GRADIO_PROBE_PORT", 7861)),
+        server_port=int(os.environ.get("GRADIO_PROBE_PORT", 7864)),
         prevent_thread_lock=True,
         quiet=True,
     )