Fix `if` condition for s3/conda uploads (#6146)
Fix `if` condition for s3/conda uploads (#6146)

Replace `steps.extract_branch.outputs.branch` (which were probably taken from
https://stackoverflow.com/questions/58033366/how-to-get-the-current-branch-within-github-actions ) with straightforward `github.event.ref`

Tested in
https://github.com/malfet/deleteme/runs/6822647720?check_suite_focus=true and https://github.com/malfet/deleteme/runs/6822691158?check_suite_focus=true
pytorch/vision,pytorch/vision,pytorch/vision,pytorch/vision,pytorch/vision,pytorch/vision