chore(deps): update uvicorn requirement in /examples/realtime/twilio_sip

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@0.38.0...0.52.4)

---
updated-dependencies:
- dependency-name: uvicorn
  dependency-version: 0.52.4
  dependency-type: direct:production
...

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

Author: dependabot[bot]

examples/realtime/twilio_sip/requirements.txt

@@ -1,3 +1,3 @@
 fastapi>=0.120.0
 openai>=3.0.0,<4
-uvicorn[standard]>=0.38.0
+uvicorn[standard]>=0.52.4