ci: Just use regular checkout (#86824)
checkout-pytorch seems to have issues and is purpose made for our PR
testing and appears to conflict with what we're trying to do for binary
builds.
For builds like
https://github.com/pytorch/pytorch/actions/runs/3207520052/jobs/5242479607
there is a confusion over where the reference is pulled and I believe it is
root caused by the checkout logic in checkout-pytorch.
So with that in mind I suggest we just use the upstream checkout action
for this job
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/86824
Approved by: https://github.com/atalman
