Bump tornado from 6.5.5 to 6.5.7

Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.5.5 to 6.5.7.
- [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst)
- [Commits](tornadoweb/tornado@v6.5.5...v6.5.7)

---
updated-dependencies:
- dependency-name: tornado
  dependency-version: 6.5.7
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -205,7 +205,7 @@ tenacity==9.1.4
 terminado==0.18.1
 tiktoken==0.12.0
 tinycss2==1.4.0
-tornado==6.5.5
+tornado==6.5.7
 tqdm==4.67.3
 traitlets==5.14.3
 truststore==0.10.4