Bump torch from 2.1.0 to 2.2.0 in /api

Bumps [torch](https://github.com/pytorch/pytorch) from 2.1.0 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/v2.1.0...v2.2.0)

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

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

api/requirements.txt

@@ -1,7 +1,7 @@
 Flask==3.0.0
 Pillow==10.2.0
 requests==2.31.0
-torch==2.1.0
+torch==2.2.0
 torchaudio==2.1.0
 torchvision==0.16.0
 tqdm==4.66.1