v0.4.0

DO NOT USE - broken

What's Changed

• Update version to v0.3.0 by @Michkov in #2
• Improve setup test environment by @adamginna-akamai in #5
• chore(deps): Bump up libraries by @adamginna-akamai in #6
• Add support for delegated subdomain zones by @mj41 in #4
• v0.4.0 release prep by @Michkov in #8

New Contributors

• @adamginna-akamai made their first contribution in #5
• @mj41 made their first contribution in #4

Full Changelog: v0.3.0...v0.4.0