upsample_*.vec ops are now CompositeImplicit (#85638)
It was previously CompositeExplicit but it was not really necessary.
See discussion in https://github.com/pytorch/pytorch/issues/85405
Pull Request resolved: https://github.com/pytorch/pytorch/pull/85638
Approved by: https://github.com/ezyang, https://github.com/lezcano, https://github.com/malfet, https://github.com/jansel
