Bump tornado from 6.4.2 to 6.5.1 in /tfx/tools/docker

Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.4.2 to 6.5.1.
- [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst)
- [Commits](tornadoweb/tornado@v6.4.2...v6.5.1)

---
updated-dependencies:
- dependency-name: tornado
  dependency-version: 6.5.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

tfx/tools/docker/requirements.txt

@@ -327,7 +327,7 @@ tinycss2==1.3.0
 toml==0.10.2
 tomli==2.0.2
 toolz==1.0.0
-tornado==6.4.2
+tornado==6.5.1
 tqdm==4.66.5
 traitlets==5.14.3
 types-python-dateutil==2.9.0.20241003