v0.3.2

This is a patch release to upgrade development dependencies and other minor development-related chores.

• VERSION: v0.3.2
• DEV: replace references to master branch with main
• DEV: cache Node modules during workflow runs (#23)
• DEV: run tests weekly
• DEV: switch from expect.js > Chai for testing
• DEV: remove workflow to create issue for updating year
• TEST: add check for correct year in license
• DEP: mocha@8.3.2
• DEP: eslint@7.23.0