[foreach] bump tensor's version and define backward via torchgen (as possible) (#93901)
## summary
- increment tensor versions in inplace foreach functions
- add a logic to take care of `ArrayRef<Scalar>`
rel: https://github.com/pytorch/pytorch/issues/58833, https://github.com/pytorch/pytorch/pull/89591
Pull Request resolved: https://github.com/pytorch/pytorch/pull/93901
Approved by: https://github.com/albanD
