chore(deps): Bump starlette from 0.48.0 to 0.49.1

Bumps [starlette](https://github.com/Kludex/starlette) from 0.48.0 to 0.49.1.
- [Release notes](https://github.com/Kludex/starlette/releases)
- [Changelog](https://github.com/Kludex/starlette/blob/main/docs/release-notes.md)
- [Commits](https://github.com/Kludex/starlette/compare/0.48.0...0.49.1)

---
updated-dependencies:
- dependency-name: starlette
  dependency-version: 0.49.1
  dependency-type: direct:production
...

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

requirements.txt

@@ -37,7 +37,7 @@ pydantic==2.12.0
 pydantic_core==2.41.1
 python-multipart==0.0.20
 sniffio==1.3.1
-starlette==0.48.0
+starlette==0.49.1
 hypercorn==0.17.3
 pydantic-settings==2.11.0