change ZS model

zeroshot_clf_helper.py

@@ -46,7 +46,7 @@ def create_onnx_model_zs(art_path='zeroshot_onnx_dir'):
     if not os.path.exists(art_path):
         try:
             subprocess.run(['python3', '-m', 'transformers.onnx',
-                            '--model=facebook/bart-large-mnli',
+                            '--model=valhalla/distilbart-mnli-12-1',
                             '--feature=sequence-classification',
                             art_path])
         except: