v0.4.0

What's Changed

• feat(shorebird_cli): recognize flavors in Flutter modules by @bryanoltman in #569
• feat(shorebird_cli): add shorebird build aar command by @bryanoltman in #570
• feat(shorebird_cli): add release android_archive command by @bryanoltman in #573
• chore(shorebird_cli): change patch to patch android to prepare for ios and aars by @bryanoltman in #574
• refactor(shorebird_cli): consolidate command precondition checks in ShorebirdValidationMixin by @bryanoltman in #575
• feat: Give cutler some sane default behavior by @eseidel in #578
• feat: teach cutler that Dart exists by @eseidel in #579
• feat(code_push_protocol): add CreateReleaseResponse and ArtifactUploadUrls by @felangel in #576
• refactor(code_push_protocol): make CreateReleaseResponse compatible with v1 by @felangel in #581
• feat(code_push_protocol): add CreatePatchResponse by @felangel in #582
• refactor(code_push_protocol): move upload urls to artifact responses by @felangel in #583
• refactor(code_push_protocol): rename url to upload_url by @felangel in #585
• feat(shorebird_cli): add aar differ by @bryanoltman in #584
• feat(shorebird_cli): add ability to patch aars by @bryanoltman in #577
• feat(code_push_client): adjust createArtifact APIs to use uploadUrl by @felangel in #586
• fix(code_push_protocol): add missing identifiers to create artifact responses by @felangel in #587
• fix(code_push_protocol): rename upload_url to url for backward compat by @felangel in #588
• fix(shorebird_cli): shorebird release android fails for existing release by @felangel in #591
• chore(shorebird_cli): v0.4.0 by @felangel in #592

Full Changelog: v0.3.1...v0.4.0