[Snyk] Security upgrade tornado from 6.2 to 6.4.2

[bashtage]

Snyk has created this PR to fix 1 vulnerabilities in the pip dependencies of this project.

Snyk changed the following file(s):

• requirements-dev.txt

⚠️ Warning

sphinx 5.3.0 has requirement docutils<0.20,>=0.14, but you have docutils 0.20.1.
sphinx 5.3.0 has requirement importlib-metadata>=4.8; python_version < "3.10", but you have importlib-metadata 4.2.0.
notebook 6.5.7 requires pyzmq, which is not installed.
jupyterlab-server 2.24.0 has requirement importlib-metadata>=4.8.3; python_version < "3.10", but you have importlib-metadata 4.2.0.
jupyter-server 1.24.0 requires pyzmq, which is not installed.
jupyter-console 6.6.3 requires pyzmq, which is not installed.
jupyter-client 7.4.9 requires pyzmq, which is not installed.
ipykernel 6.16.2 requires pyzmq, which is not installed.

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Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.
• 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.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.51%. Comparing base (8ff5a5e) to head (2aeb842).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #761   +/-   ##
=======================================
  Coverage   99.51%   99.51%           
=======================================
  Files          74       74           
  Lines       15634    15634           
  Branches     1274     1274           
=======================================
  Hits        15558    15558           
  Misses         51       51           
  Partials       25       25           

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