build(deps): bump gradio from 3.1.4 to 3.13.2 in /Food Detector

Bumps [gradio](https://github.com/gradio-app/gradio) from 3.1.4 to 3.13.2.
- [Release notes](https://github.com/gradio-app/gradio/releases)
- [Changelog](https://github.com/gradio-app/gradio/blob/main/CHANGELOG.md)
- [Commits](gradio-app/gradio@v3.1.4...v3.13.2)

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

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

Author: dependabot[bot]

Food Detector/requirements.txt

@@ -1,3 +1,3 @@
 torch==1.12.0
 torchvision==0.13.0
-gradio==3.1.4
+gradio==3.13.2