Enable PyTorch version selection for full test (#7968)
This PR enables the full test workflow to choose PyTorch version. It
resolves each the version into matching `torch` / `torchvision` /
`torchaudio` install versions.
It also keeps nightly change detection schedule-only, so manual runs do
not affect the daily baseline.
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Signed-off-by: Masahiro Tanaka <mtanaka@anyscale.com>
Co-authored-by: Ma, Guokai <guokai.ma@gmail.com>
