GRF Environment Installation Issues

[gyhai-sys]

I am encountering problems while installing the GRF environment. The requirements specify Python 3.6, which is proving to be unhelpful for debugging and installation. I am currently using Python 3.7.

Additionally, in the football_runner.py file, the method self.insert(data) is receiving an unexpected parameter, rnn_states. Upon further investigation, I found that the keyword argument in self.buffer.insert() is rnn_states, but it should actually be rnn_states_actor. This needs to be corrected to rnn_states_actor=rnn_states.

Lastly, the latest version of Gym returns two values from the reset method, so I will need to downgrade to version 0.22 to resolve compatibility issues.

[HosnLS]

Thank you. A new PR is raised to fix this problem.