Restrict auto-merge to specific pull requests with auto_merge_conditions

merge_protection_settings.auto_merge_conditions accepts true for unconditional auto-merge, or a list of conditions to restrict auto-merge to a subset of pull requests — for example [author = dependabot[bot]] to auto-merge bot PRs while letting humans queue manually, or [label = ready-to-merge] to require an explicit opt-in label. When the conditions match, the pull request is added to the merge queue (or merged directly if no merge queue is configured) once your merge protections pass.