.github: Ensure clean workspaces before checkout (#61565)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/61565
I was noticing the checkout step failing a lot for me, this adds a
cleaning step to fully remove the github workspace before attempting to
do your checkout
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Test Plan: Imported from OSS
Reviewed By: zhouzhuojie
Differential Revision: D29671074
Pulled By: seemethere
fbshipit-source-id: 43a8f9a9a272c6bdbfffa9c6263443aac37f4b89
