fix onnx export bug

hnluo

2023-08-29 72b6c7735e44fff12c4a3d401deb98c59f16ab0f

 funasr/runtime/triton_gpu/model_repo_paraformer_large_offline/encoder/config.pbtxt

@@ -40,7 +40,7 @@
  },
  {
    name: "token_num"
    data_type: TYPE_INT64
    data_type: TYPE_INT32
    dims: [1]
    reshape: { shape: [ ] }
  }