### What is the problem this feature will solve? I see CI sometimes gets flaky, and the PR author has to find a collaborator to re-run it. Maybe triagers can help with that too? Triage now can add the `request-ci` label to PRs, but it will completely re-run a CI from zero. ### What is the feature you are proposing to solve the problem? Grant triagers the ability to the `resume build` option. ### What alternatives have you considered? Or maybe `request-ci` label can be processed more smartly.