Update app.py

app.py

@@ -31,7 +31,7 @@ else:
 # Initialize transformer
 config_file = hf_hub_download(repo_id=model_repo_id, filename="transformer/config.json")
 with open(config_file, "r") as fp:
-    config = json.loads(fp)
+    config = json.load(fp)
 with init_empty_weights():
     transformer = SD3Transformer2DModel.from_config(config)