Bump starlette from 0.20.4 to 0.25.0 in /frameworks/Python/starlette

Bumps [starlette](https://github.com/encode/starlette) from 0.20.4 to 0.25.0.
- [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/0.20.4...0.25.0)

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

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

frameworks/Python/starlette/requirements.txt

@@ -10,7 +10,7 @@ MarkupSafe==2.1.1
 python-dotenv==0.20.0
 PyYAML==6.0
 sniffio==1.3.0
-starlette==0.20.4
+starlette==0.25.0
 uvicorn==0.18.3
 uvloop==0.16.0
 watchfiles==0.16.1