Clippy should be run in CI

[gregtatum]

We should add it to a workflow in: .github/workflows

[waywardmonkeys]

@gregtatum Is this something that is still desired? I have some PRs open that would be prerequisites to this like #315 (along with several other PRs).

[alerque]

This was implemented in #342. I might submit some tweaks to CI usage across the board but this has been implemented.