chore(deps): Bump fastapi from 0.123.8 to 0.123.9

Bumps [fastapi](https://github.com/fastapi/fastapi) from 0.123.8 to 0.123.9.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](https://github.com/fastapi/fastapi/compare/0.123.8...0.123.9)

---
updated-dependencies:
- dependency-name: fastapi
  dependency-version: 0.123.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -28,7 +28,7 @@ pymongo==4.15.5
 hysteria2-api==0.1.3
 
 # Web panel (FastAPI stack)
-fastapi==0.123.8
+fastapi==0.123.9
 Jinja2==3.1.6
 python-multipart==0.0.20
 hypercorn==0.18.0