Bump tornado from 6.5.6 to 6.5.7 (#158)

Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.5.6 to 6.5.7.
- [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst)
- [Commits](tornadoweb/tornado@v6.5.6...v6.5.7)

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

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

Author: dependabot[bot]

requirements.txt

@@ -9,5 +9,5 @@ pyjwt==2.13.0
 pyyaml==6.0
 requests==2.33.0
 there==0.0.9
-tornado==6.5.6
+tornado==6.5.7
 yieldbreaker==0.0.1