replace callbacks_address prop usage with peer_url
replace callbacks_address prop usage with peer_url

concourse/concourse,cjcjameson/concourse,cjcjameson/concourse,longnguyen11288/concourse,CloudCredo/concourse,CloudCredo/concourse,longnguyen11288/concourse,zachgersh/concourse,longnguyen11288/concourse,concourse/concourse,zachgersh/concourse,concourse/concourse,concourse/concourse,CloudCredo/concourse,cjcjameson/concourse,zachgersh/concourse,concourse/concourse