feat: create lms retirement listener for verified name

[varshamenon4]

Description:

The purpose of this ticket is to hook the VerifiedName model of the edx-name-affirmation application into the LMS retirement pipeline.

openedx/platform-roadmap#367

JIRA:

COSMO-465

Pre-Merge Checklist:

• Updated the version number in edx_name_affirmation/__init__.py if these changes are to be released. See OEP-47: Semantic Versioning.
• Described your changes in CHANGELOG.rst.
• Confirmed Github reports all automated tests/checks are passing.
• Approved by at least one additional reviewer.

Post-Merge:

• Create a tag matching the new version number.

[github-actions]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
edx_name_affirmation
__init__.py
models.py
signals.py
edx_name_affirmation/tests
test_signals.py
Project Total

This report was generated by python-coverage-comment-action

[varshamenon4]

Ready for review! Had a couple of questions about python version and testing. Unit tests are added but I still need to test locally.

[MichaelRoytman]

This looks good! I think we should clean up the requirements files before merge, but my other recommendations are just nits - you can take them or leave them 🙂.

[schenedx]

👍