Bump pytorch-pfn-extras from 0.8.0 to 0.8.1

Bumps [pytorch-pfn-extras](https://github.com/pfnet/pytorch-pfn-extras) from 0.8.0 to 0.8.1.
- [Release notes](https://github.com/pfnet/pytorch-pfn-extras/releases)
- [Commits](pfnet/pytorch-pfn-extras@v0.8.0...v0.8.1)

---
updated-dependencies:
- dependency-name: pytorch-pfn-extras
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -9,7 +9,7 @@ pandas==2.2.3
 Pillow-SIMD==9.5.0.post2
 progressbar2==4.5.0
 pytorch-ignite==0.5.1
-pytorch-pfn-extras==0.8.0
+pytorch-pfn-extras==0.8.1
 scikit-image==0.24.0
 scikit-learn==1.5.2
 scipy==1.14.1