Set up environment for cpu machine in WSL2

[phuongpho]

Hi, @mshuaibii
I tried to setup your repo on WSL2. This time, it failed to install the following packages: demjson, torch-scatter, torch-geometric. I've looked at the env.yml file and found that the link "git+https://github.com/rusty1s/pytorch_geometric.git@4ea63d3" doesn't exist any longer.

Could you please try to setup the environment on your site to see if there's systematic error
Thanks

Originally posted by @phuongpho in #300 (comment)

[mshuaibii]

Hmm, that installation still works fine on my end. Can you try modifying https://github.com/Open-Catalyst-Project/ocp/blob/79d674587953f7b17a2838930f491da06c82e605/env.common.yml#L25 to torch-geometric==1.7.2. This should be consistent with the previous commit.