Update torch requirement from >=1.11.0 to >=2.8.0

Updates the requirements on [torch](https://github.com/pytorch/pytorch) to permit the latest version.
- [Release notes](https://github.com/pytorch/pytorch/releases)
- [Changelog](https://github.com/pytorch/pytorch/blob/main/RELEASE.md)
- [Commits](pytorch/pytorch@ciflow/torchtitan/168331...v2.8.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -8,7 +8,7 @@ Pillow>=9.0.0
 matplotlib>=3.4.1
 pip
 h5py
-torch>=1.11.0
+torch>=2.8.0
 torchvision
 pycocotools>=2.0.2
 albumentations>=0.5.2