Bump torch from 1.4 to 2.2.0

Bumps [torch](https://github.com/pytorch/pytorch) from 1.4 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/v1.4.0...v2.2.0)

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

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

requirements.txt

@@ -23,7 +23,7 @@ SimpleITK
 tensorflow>=1.14,<2
 
 # The book was written targeting PyTorch 1.4, but everything in it should work fine with more up-to-date versions.
-torch==1.4
+torch==2.2.0
 
 # future is here due to a missing dep in caffe2
 # future