shipit-workflow: enable Heroku deployments (#964)
shipit-workflow: enable Heroku deployments (#964)


mozilla-releng/services,La0/mozilla-relengapi,mozilla-releng/services,lundjordan/services,lundjordan/services,La0/mozilla-relengapi,La0/mozilla-relengapi,mozilla-releng/services,mozilla-releng/services,lundjordan/services,lundjordan/services,La0/mozilla-relengapi