v0.18.0

• chore: rename branch to main (27793ad)
• chore(deps): bump pngjs from 6.0.0 to 7.0.0 (#588)
• group version updates (#608)
• breaking: drop support for node 14 and 16 (#638)
• chore: test in Node.js 20 (#639)

Full Changelog: v0.17.1...v0.18.0