[XLA hash update] update the pinned xla hash (#78600)
This PR is auto-generated nightly by [this action](https://github.com/pytorch/pytorch/blob/master/.github/workflows/update-xla-commit-hash.yml).
Update the pinned xla hash.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/78600
Approved by: https://github.com/janeyx99
