build(deps): bump starlette in /21-async/mojifinder

Bumps [starlette](https://github.com/encode/starlette) from 0.25.0 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@0.25.0...0.40.0)

---
updated-dependencies:
- dependency-name: starlette
  dependency-version: 0.40.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

21-async/mojifinder/requirements.txt

@@ -2,6 +2,6 @@ click==7.1.2
 fastapi==0.65.2
 h11==0.12.0
 pydantic==1.8.2
-starlette==0.25.0
+starlette==0.40.0
 typing-extensions==3.7.4.3
 uvicorn==0.13.4