chore(deps): Update uvicorn requirement from ~=0.32 to ~=0.47

Updates the requirements on [uvicorn](https://github.com/Kludex/uvicorn) to permit the latest version.
- [Release notes](https://github.com/Kludex/uvicorn/releases)
- [Changelog](https://github.com/Kludex/uvicorn/blob/main/docs/release-notes.md)
- [Commits](Kludex/uvicorn@0.32.0...0.47.0)

---
updated-dependencies:
- dependency-name: uvicorn
  dependency-version: 0.47.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -17,7 +17,7 @@ openai-agents~=0.17
 a2a-sdk~=1.0
 mcp~=1.27
 httpx~=0.28
-uvicorn~=0.32
+uvicorn~=0.47
 starlette~=0.48
 python-dotenv~=1.0
 pytest~=8.0