dependency: (deps): bump annotated-types from 0.6.0 to 0.7.0 in /backend

Bumps [annotated-types](https://github.com/annotated-types/annotated-types) from 0.6.0 to 0.7.0.
- [Release notes](https://github.com/annotated-types/annotated-types/releases)
- [Commits](annotated-types/annotated-types@v0.6.0...v0.7.0)

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

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

backend/requirements.txt

@@ -1,4 +1,4 @@
-annotated-types==0.6.0
+annotated-types==0.7.0
 anyio==4.2.0
 asgiref==3.7.2
 certifi==2023.11.17