Bump tornado from 6.3.3 to 6.4.1 in /examples/research_projects/lxmert (#31353)

Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.3.3 to 6.4.1.
- [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst)
- [Commits](https://github.com/tornadoweb/tornado/compare/v6.3.3...v6.4.1

)

---
updated-dependencies:
- dependency-name: tornado
  dependency-type: direct:production
...
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

examples/research_projects/lxmert/requirements.txt

@@ -86,7 +86,7 @@ testpath==0.4.4
 tokenizers==0.8.1rc2
 torch==1.13.1
 torchvision==0.7.0
-tornado==6.3.3
+tornado==6.4.1
 tqdm==4.66.3
 traitlets
 git+https://github.com/huggingface/transformers.git