Bump fastapi[all] in /guess-the-country/country-backend

Bumps [fastapi[all]](https://github.com/tiangolo/fastapi) from 0.88.0 to 0.95.2.
- [Release notes](https://github.com/tiangolo/fastapi/releases)
- [Commits](tiangolo/fastapi@0.88.0...0.95.2)

---
updated-dependencies:
- dependency-name: fastapi[all]
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

guess-the-country/country-backend/requirements.txt

@@ -1,4 +1,4 @@
-fastapi[all]==0.88.0
+fastapi[all]==0.95.2
 uvicorn==0.20.0
 visualime==0.0.4