build(deps): Bump starlette from 0.22.0 to 0.40.0 in /api

Bumps [starlette](https://github.com/encode/starlette) from 0.22.0 to 0.40.0.
- [Release notes](https://github.com/encode/starlette/releases)
- [Changelog](https://github.com/encode/starlette/blob/master/docs/release-notes.md)
- [Commits](encode/starlette@0.22.0...0.40.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

api/requirements.txt

@@ -37,7 +37,7 @@ ruff==0.0.246
 six==1.16.0
 sniffio==1.3.0
 sqlparse==0.4.4
-starlette==0.22.0
+starlette==0.40.0
 substrait-validator==0.0.11
 tomli==2.0.1
 typing_extensions==4.4.0