chore(deps): Bump starlette from 0.47.2 to 0.47.3

Bumps [starlette](https://github.com/encode/starlette) from 0.47.2 to 0.47.3.
- [Release notes](https://github.com/encode/starlette/releases)
- [Changelog](https://github.com/encode/starlette/blob/master/docs/release-notes.md)
- [Commits](https://github.com/encode/starlette/compare/0.47.2...0.47.3)

---
updated-dependencies:
- dependency-name: starlette
  dependency-version: 0.47.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -36,7 +36,7 @@ pydantic==2.11.7
 pydantic_core==2.33.2
 python-multipart==0.0.20
 sniffio==1.3.1
-starlette==0.47.2
+starlette==0.47.3
 hypercorn==0.17.3
 pydantic-settings==2.10.1