Upgrade actions/upload-artifact to v3 (#87553)
Upgrade a bunch of actions to get rid of the deprecation warnings, i.e. https://github.com/pytorch/pytorch/actions/runs/3304031186
* Upgrade actions/upload-artifact to v3
* Upgrade Windows actions/setup-python to v4 (left over)
Note: Warnings coming from setup/cache will be fixed upstream by https://github.com/pytorch/test-infra/pull/941
Pull Request resolved: https://github.com/pytorch/pytorch/pull/87553
Approved by: https://github.com/clee2000
