Bump uvicorn from 0.13.4 to 0.14.0

Bumps [uvicorn](https://github.com/encode/uvicorn) from 0.13.4 to 0.14.0.
- [Release notes](https://github.com/encode/uvicorn/releases)
- [Changelog](https://github.com/encode/uvicorn/blob/master/CHANGELOG.md)
- [Commits](encode/uvicorn@0.13.4...0.14.0)

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

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

requirements.txt

@@ -9,4 +9,4 @@ python-dotenv==0.17.1
 python-jose==3.2.0
 python-socketio[asyncio_client]==5.0.4  # pin for now to solve unknown connection issue
 pyyaml==5.4.1
-uvicorn==0.13.4
+uvicorn==0.14.0