.github: Make sure to deep clone on windows (#62907)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62907
Deep clones allow us to use git commands on historical commits so that
we can do things like collect test times correctly
Should fix empty `.pytorch-test-times.json` files that walterddr was observing
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Test Plan: Imported from OSS
Reviewed By: janeyx99
Differential Revision: D30166414
Pulled By: seemethere
fbshipit-source-id: 1f9904eeb5a8ebaf0a02d1aa7291fffe1aecd57b
