Bump zipp from 3.19.2 to 3.20.1

Bumps [zipp](https://github.com/jaraco/zipp) from 3.19.2 to 3.20.1.
- [Release notes](https://github.com/jaraco/zipp/releases)
- [Changelog](https://github.com/jaraco/zipp/blob/main/NEWS.rst)
- [Commits](jaraco/zipp@v3.19.2...v3.20.1)

---
updated-dependencies:
- dependency-name: zipp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

backend/requirements.txt

@@ -21,4 +21,4 @@ soupsieve==2.5
 urllib3==2.2.1
 Werkzeug==3.0.3
 yarg==0.1.9
-zipp==3.19.2
+zipp==3.20.1