build(deps): bump tornado from 6.5.5 to 6.5.7 in /docs

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]

docs/pyproject.toml

@@ -19,7 +19,7 @@ dependencies = [
   "sphinx-multiversion-scylla>=0.3.2,<1.0.0",
   "sphinx>=9.0",
   "six>=1.9",
-  "tornado>=6.5,<7.0",
+  "tornado>=6.5.7,<7.0",
 ]
 
 [dependency-groups]