Bump torch from 1.9.0 to 1.13.1 in /ICLR2023

Bumps [torch](https://github.com/pytorch/pytorch) from 1.9.0 to 1.13.1.
- [Release notes](https://github.com/pytorch/pytorch/releases)
- [Changelog](https://github.com/pytorch/pytorch/blob/master/RELEASE.md)
- [Commits](pytorch/pytorch@v1.9.0...v1.13.1)

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

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

Author: dependabot[bot]

ICLR2023/requirements.txt

@@ -225,7 +225,7 @@ threadpoolctl==2.2.0
 tokenizers==0.10.3
 toml==0.10.2
 tomli==1.2.1
-torch==1.9.0
+torch==1.13.1
 torchvision==0.10.0
 tornado==6.1
 tqdm==4.62.2