chore(deps): bump torch from 2.3.1+cxx11.abi to 2.8.0 in /backend/python/rerankers in the pip group across 1 directory (#8066)

chore(deps): bump torch

Bumps the pip group with 1 update in the /backend/python/rerankers directory: [torch](https://github.com/pytorch/pytorch).


Updates `torch` from 2.3.1+cxx11.abi to 2.8.0
- [Release notes](https://github.com/pytorch/pytorch/releases)
- [Changelog](https://github.com/pytorch/pytorch/blob/main/RELEASE.md)
- [Commits](https://github.com/pytorch/pytorch/commits/v2.8.0)

---
updated-dependencies:
- dependency-name: torch
  dependency-version: 2.8.0
  dependency-type: direct:production
  dependency-group: pip
...

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