Bump starlette

Bumps [starlette](https://github.com/encode/starlette) from 0.37.2 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@0.37.2...0.40.0)

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

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

Author: dependabot[bot]

cloud-infrastructure/ai-infra-gpu/ai-infrastructure/rag-langchain-vllm-mistral/files/requirements.txt

@@ -146,7 +146,7 @@ sniffio==1.3.1
 sortedcontainers==2.4.0
 soupsieve==2.5
 SQLAlchemy==2.0.29
-starlette==0.37.2
+starlette==0.40.0
 striprtf==0.0.26
 sympy==1.12
 tenacity==8.2.3