Reviewers dependabot.yml configuration is being retired option because the functionality overlaps with [GitHub code owners](https://docs.github.com/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners). See: https://github.blog/changelog/2025-04-29-dependabot-reviewers-configuration-option-being-replaced-by-code-owners/