Add hm9000 job
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Cornelia Davis and Jeff Schnitzer:
     Add a meaningful 'error_code' to all error responses. ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/12110623 )
     Temporarily mask the 'source' of errors. ( Travis Unknown )
  Maria Shaldibina and Onsi Fakhouri:
     added new hm9000 respondent to handle hm9000.start and hm9000.stop messages ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/12102685 )
  Jeff Schnitzer and Ryan Tang:
     Avoid duplicate entries in error json. ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/12074961 )
     Treat 410 from service broker unbind/deprovision as a success condition. ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/12073353 )
     Finalized the new error response format for the cloud controller. ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/12064436 )
  Phan Le and Tim Labeeuw:
     Ensure the uploaded files were removed regardless of ngx [#57595258] ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/12074454 )
  Phan Le, Sarah Chandler and Tim Labeeuw:
     Move the clean up logic to the packer. ( Travis Unknown )
  Ryan Tang and alex choi:
     Refactor HttpError and NonResponsiveHttpError ( Travis Unknown )
     Use new exception format ( Travis Unknown )
  Cornelia Davis and Ryan Tang:
     Use new ServiceBrokerApiUnreachable exception ( Travis Unknown )