Bump starlette from 0.46.2 to 0.47.2 in /ai/gen-ai-agents/travel-agent

Bumps [starlette](https://github.com/encode/starlette) from 0.46.2 to 0.47.2.
- [Release notes](https://github.com/encode/starlette/releases)
- [Changelog](https://github.com/encode/starlette/blob/master/docs/release-notes.md)
- [Commits](Kludex/starlette@0.46.2...0.47.2)

---
updated-dependencies:
- dependency-name: starlette
  dependency-version: 0.47.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

ai/gen-ai-agents/travel-agent/requirements.txt

@@ -146,7 +146,7 @@ sniffio==1.3.1
 soupsieve==2.7
 SQLAlchemy==2.0.41
 stack-data==0.6.3
-starlette==0.46.2
+starlette==0.47.2
 streamlit==1.45.1
 tenacity==9.1.2
 terminado==0.18.1