v4.0.0: Hapi v17 and Node.js v14

What's Changed

• Switch to GitHub Actions, Node.js v14 and Hapi v16 Compatibility by @tlhunter in #35
• PP-225: Hapi v17, Node.js v14, update deps, nyc coverage, modernize by @tlhunter in #36

Full Changelog: v3.0.2...v4.0.0