Bump torch from 1.6.0 to 2.2.0

Bumps [torch](https://github.com/pytorch/pytorch) from 1.6.0 to 2.2.0.
- [Release notes](https://github.com/pytorch/pytorch/releases)
- [Changelog](https://github.com/pytorch/pytorch/blob/main/RELEASE.md)
- [Commits](https://github.com/pytorch/pytorch/compare/v1.6.0...v2.2.0)

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

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

requirements.txt

@@ -1,4 +1,4 @@
-torch==1.6.0
+torch==2.2.0
 torchvision==0.7.0
 cox
 pandas==1.1.1