fix: import spaces pkg instead of decorator

app.py

@@ -10,10 +10,9 @@ from sam2.sam2_image_predictor import SAM2ImagePredictor
 
 from src.plot_utils import export_mask
 
-from spaces import GPU
+import spaces
 
-
-@GPU()
+@spaces.GPU()
 def predict(model_choice, annotations: Dict[str, Any]):
     device = "cuda" if torch.cuda.is_available() else "cpu"
     sam2_model = load_model(