Bump uvicorn from 0.11.3 to 0.11.7 in /frameworks/Python/uvicorn (#5908)

Bumps [uvicorn](https://github.com/encode/uvicorn) from 0.11.3 to 0.11.7.
- [Release notes](https://github.com/encode/uvicorn/releases)
- [Changelog](https://github.com/encode/uvicorn/blob/master/CHANGELOG.md)
- [Commits](https://github.com/encode/uvicorn/compare/0.11.3...0.11.7)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

frameworks/Python/uvicorn/requirements.txt

@@ -3,4 +3,4 @@ gunicorn==20.0.4
 Jinja2==2.11.1
 ujson==2.0.3
 uvloop==0.14.0
-uvicorn==0.11.3
+uvicorn==0.11.7