Add requests as a legit dependency (#25596)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25596
Giving up on trying to limit this to just a py2 dependency
Test Plan: Imported from OSS
Differential Revision: D17171063
Pulled By: jamesr66a
fbshipit-source-id: 5df35fd128f3051dd9c6709f7d45323fedc12e65
