Update uvicorn requirement from ~=0.22.0 to ~=0.23.2

Updates the requirements on [uvicorn](https://github.com/encode/uvicorn) to permit the latest version.
- [Release notes](https://github.com/encode/uvicorn/releases)
- [Changelog](https://github.com/encode/uvicorn/blob/master/CHANGELOG.md)
- [Commits](encode/uvicorn@0.22.0...0.23.2)

---
updated-dependencies:
- dependency-name: uvicorn
  dependency-type: direct:production
...

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

requirements.txt

@@ -1,5 +1,5 @@
 fastapi~=0.100.0
-uvicorn~=0.22.0
+uvicorn~=0.23.2
 fastapi-chameleon
 starlette~=0.27.0
 aiofiles