Updates all actions/*-artifact actions from 3 to 4
What's Changed
- Update actions/*-artifact actions in an independent group by @mike-carey in #69
- Creates a separate group for artifact actions rather than an update object by @mike-carey in #70
- Updates all actions/*-artifact actions from 3 to 4 by @mike-carey in #71
Full Changelog: v3...v4.0.0