Alex Byzov

bugfix: add support for `global_ordinal`, `local_ordinal`, `world_size` in xla

2

## What does this PR do? PyTorch XLA has deprecated several methods in PyTorch 2.7: - Remove torch_xla.core.xla_model.xrt_world_size, replace with torch_xla.runtime.world_size - Remove torch_xla.core.xla_model.get_ordinal, replace with torch_xla.runtime.global_ordinal See [here](https://github.com/pytorch/xla/releases) Fixes...