v0.3.0

What's Changed

• chore: update CI to include v18 by @nfischer in #13
• docs: change GitHub Actions README badge by @nfischer in #14
• chore: skip lint on node v4 by @nfischer in #16
• chore: update shelljs and drop old node support by @nfischer in #17

Full Changelog: v0.2.1...v0.3.0