Suppress pip logs (#31912)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/31912
### Summary
Clean up the logs from pip-install.
### Test Plan
- Don't break the iOS simulator build
Test Plan: Imported from OSS
Differential Revision: D19395526
Pulled By: xta0
fbshipit-source-id: a638a209cab801ce90c8615e7ea030b1ab0939f3
