Bump tornado from 6.4 to 6.4.2

Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.4 to 6.4.2.
- [Changelog](https://github.com/tornadoweb/tornado/blob/v6.4.2/docs/releases.rst)
- [Commits](tornadoweb/tornado@v6.4.0...v6.4.2)

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

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

Author: dependabot[bot]

requirements.txt

@@ -45,7 +45,7 @@ toml==0.10.2
 toolz==0.12.1
 torch==2.3.0
 torchvision==0.18.0
-tornado==6.4
+tornado==6.4.2
 typing_extensions==4.11.0
 tzdata==2024.1
 urllib3==2.2.1