FinRL_PaperTrading_Demo packages out of sync with ElegantRL

**Description**
When running train fn in FinRL_PaperTrading_Demo, ElegantRL Train function is called, but it gets an error:

> [/usr/local/lib/python3.7/dist-packages/finrl/agents/elegantrl/models.py](https://solhv4aagc-496ff2e9c6d22116-0-colab.googleusercontent.com/outputframe.html?vrz=colab-20220713-060046-RC00_460676560#) in get_model(self, model_name, model_kwargs)
61 if model_name not in MODELS:
62 raise NotImplementedError("NotImplementedError")
---> 63 model = Arguments(agent=agent, env=env)
64 model.if_off_policy = model_name in OFF_POLICY_MODELS
65 if model_kwargs is not None:

`TypeError: __init__() got an unexpected keyword argument 'agent'`.

When this issue was patched locally, other issues arose. This seems to be due to some package misalignments with newer commits.

Is there a way to use the older version of ElegantRL to rerun the notebook without issues?

**To Reproduce**
Steps to reproduce the behavior:
1. Run FinRL_PaperTrading_Demo in Colab

Thanks !!