Test mockprock on Python 3.11

[feanil]

This repository is a depedency of edx-platform and needs to be upgraded to Python 3.11 before
the Readwood release is cut (mid-April).

• Requirements are compiled with Python 3.8
• Tests are run on Python 3.8 and 3.11
• (Optional) Tests are also run with 3.12 and passing or 3.12 issues are ticketed.
• Classifiers in setup.py setup.cfg or pyproject.toml indicate Python 3.11 support
• A new version is release to PyPI
• A PR is merged to edx-platform to use the new version

[mariajgrimaldi]

This repository doesn't have a workflow for Python or unittests, but I'll review it next week to see if I can easily add some.

[kdmccormick]

@mariajgrimaldi this is meant to be a development-only tool. Unit tests are always good, but if you have limited time, consider instead removing this from edx-platform's requirement lists. Developers would still be able to install it locally.

[feanil]

It looks like this is currently only installed as an NPM dev dependency so we don't need to do anything for the python 3.11 upgrade.