Is your feature request related to a problem? Please describe.
Sometimes (i.e. #378) linting issues get through to main or the linters themselves are updated. It would be great to have automated lining of the full package on main both on a schedule and also on a push just so we can be sure that main is always passing all lining checks (or that we know if it is not). This would be in addition to our current listing of just changed files.

Describe the solution you'd like
Either the addition of flexibility to our current GitHub Acton or a new GitHub action (based on the basic usethis template) that triggers on main when new code is added and that runs on a weekly schedule and that lints the entire package (rather than just changed code). Unlike our current workflow this should not trigger on PRs.

Describe alternatives you've considered
Being told this is a bad idea.