Bump the torch group with 2 updates

Bumps the torch group with 2 updates: [torch](https://github.com/pytorch/pytorch) and [torchvision](https://github.com/pytorch/vision).


Updates `torch` from 2.1.0 to 2.3.1
- [Release notes](https://github.com/pytorch/pytorch/releases)
- [Changelog](https://github.com/pytorch/pytorch/blob/main/RELEASE.md)
- [Commits](pytorch/pytorch@v2.1.0...v2.3.1)

Updates `torchvision` from 0.16.0 to 0.18.1
- [Release notes](https://github.com/pytorch/vision/releases)
- [Commits](pytorch/vision@v0.16.0...v0.18.1)

---
updated-dependencies:
- dependency-name: torch
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: torch
- dependency-name: torchvision
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: torch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/required.txt

@@ -2,8 +2,8 @@ torchgeo==0.5.2
 rioxarray==0.15.0
 albumentations==1.3.1
 rasterio==1.3.9
-torch==2.1.0
-torchvision==0.16.0
+torch==2.3.1
+torchvision==0.18.1
 torchmetrics==1.3.1
 geopandas==0.14.2
 lightly==1.4.25