feat(ci): run lint and tests in parallel (#2736)
Actions doesn't let us run *steps* in parallel, but we can run *jobs* in parallel. The lint and test jobs are part of the same *workflow*. Understanding Actions terminology is half the battle.
Co-authored-by: Rob Lewis <rob.y.lewis@gmail.com>
Co-authored-by: Bryan Gin-ge Chen <bryangingechen@gmail.com>
