[Snyk] Security upgrade tornado from 6.2 to 6.3.2

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `pip` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • requirements-demo.txt

⚠️ Warning

ypy-websocket 0.8.4 has requirement y-py<0.7.0,>=0.6.0, but you have y-py 0.5.9.

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	556/1000 Why? Recently disclosed, Has a fix available, CVSS 5.4	Open Redirect SNYK-PYTHON-TORNADO-5537286	tornado: 6.2 -> 6.3.2	No	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the affected dependencies could be upgraded.

Check the changes in this PR to ensure they won't cause issues with your project.

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