Bump tornado from 6.4 to 6.4.1

Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.4 to 6.4.1.
- [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst)
- [Commits](tornadoweb/tornado@v6.4.0...v6.4.1)

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

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

requirements.txt

@@ -28,7 +28,7 @@ qrcode==7.4.2
 rich==13.7.1
 sniffio==1.3.1
 starlette==0.37.2
-tornado==6.4
+tornado==6.4.1
 typing_extensions==4.11.0
 ua-parser==0.18.0
 user-agents==2.2.0