v0.4.0

What's Changed

• Add integration tests by @nkz-soft in #30
• Bump actions/cache from 3 to 4 by @dependabot in #36
• Bump docker/login-action from 2 to 3 by @dependabot in #35
• Bump docker/metadata-action from 4 to 5 by @dependabot in #33
• Bump docker/build-push-action from 3 to 6 by @dependabot in #31
• Bump actions/checkout from 3 to 4 by @dependabot in #32

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