suggest: add some method to avoid action hang-up auto BC hasn't been pushed for too long #29
Description
https://stackoverflow.com/questions/67184368/prevent-scheduled-github-actions-from-becoming-disabled
https://github.com/marketplace/actions/keepalive-workflow
基于这个考虑是不是把下面这玩意塞进去workflows会好点？
- name: Keepalive Workflow
uses: gautamkrishnar/keepalive-workflow@2.0.5