v0.19.0

Changelog

• be4580e Test/extend integration tests (#120)
• c73dc8b Test/extend integration tests (#121)
• efa2810 Test/extend integration tests (#122)
• ab8674a feat: add Snap (#47) and Zypper (#124) package manager adapters (#125)
• 0fe66b6 refactor: decompose apt.go and dnf.go into repo sub-file (#107)
• 94683fe refactor: decompose doctor.go into helpers with display layer (#95) (#111)
• 95fa351 refactor: decompose reconcile.go and restore.go to reduce complexity (#112)
• 97dc7ae refactor: decompose selfupdate.go and raise coverage to 92.3% (#104) (#110)
• 0f8ede2 refactor: extract generate() from main() and push coverage to 92.9% (#115)
• a1f1857 refactor: split monolithic manager_test.go into per-adapter test files (#101)