Bitbucket Pipeline to SFTP Files Up To WordPress Server

bitbucket-pipelines.yml

pipelines:
 branches:
   master:
     - step:
         name: Deploy to staging
         deployment: staging
         script:
          - pipe: atlassian/sftp-deploy:0.5.7
            variables:
              USER: $SFTP_USERNAME
              SERVER: 'sftp.flywheelsites.com'
              REMOTE_PATH: '/your/path/to/theme'
              PASSWORD: $SFTP_PASSWORD
              SSH_KEY: '/opt/atlassian/pipelines/agent/ssh/id_rsa'