问题1： 
jobs:
  deploy:
    runs-on: ubuntu-latest

如上配置的工作流，在Set up job阶段会pull image，但是流程执行完这个镜像又会被删除掉，导致每次Set up job的时候都要重新拉，很慢 
问题2: 
jobs:
  deploy:
    runs-on: ubuntu-latest
    
    steps:
      - name: Deploy via SSH
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ secrets.SSH_HOST }}
          username: ${{ secrets.SSH_USERNAME }}
          password: ${{ secrets.SS...