Bump src/acceptance-tests, src/cloud_controller_ng

Bump :
  Chris Piraino, Luan Santos and Rick Reilly:
     Add CATS test for /v2/apps/:guid/copy_bits endpoint.
  Alex Stupakov:
     Add test for loggregator firehose [#80870620]
Bump cloudfoundry/cloud_controller_ng:
  Eric Malm and James Myers:
     Merge remote-tracking branch origin/wip-81201540 ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/39210027 )
     Update rspec gem ( Travis Unknown )
     /v2/apps/:guid/copy_bits is always async ( Travis Unknown )
  Matthew Sykes:
     Add index to worker name ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38863794 )
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Chris Piraino and Serguei Filimonov:
     Avoid time zone and DST-related bugs by switching to Time.current. ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/39211623 )
Add hm9000.url properties to CF manifest

[#80850336]
Bump src/cloud_controller_ng, src/hm9000

Bump cloudfoundry/cloud_controller_ng:
  Jeff Hui and Luan Santos:
     Use only hm9000.url to set hm's url ( Travis created: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/39216835 )
  Dave Goddard and Luan Santos:
     Select hm9000 http schema ( Travis Unknown )
     Fallback to Deprecated HM9000 NATS Client if HTTP Server not found ( Travis Unknown )
     Replace HM9000 NATS client with HTTP ( Travis Unknown )
  Chris Piraino and Serguei Filimonov:
     Avoid time zone and DST-related bugs by switching to Time.current. ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/39211623 )
  Eric Malm and James Myers:
     Merge remote-tracking branch 'origin/wip-81201540' ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/39210027 )
     Update rspec gem ( Travis Unknown )
     /v2/apps/:guid/copy_bits is always async ( Travis Unknown )
     Update AWS s3 credentials for travis-ci ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38771837 )
  Michael Fraenkel:
     Pick a different name to prevent name pollution ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/39046211 )
     Pass along the droplet and build artifact uris ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/39025946 )
     Record a delete event after a successful delete ( Travis Unknown )
  Matthew Sykes:
     Finish the rename s/CF_DIEGO/DIEGO/g ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38962184 )
     update api version spec post-merge ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38950274 )
     backfill test for `stage_with_diego?` ( Travis Unknown )
     remove 'required' option for diego configs [#80165358] ( Travis Unknown )
     Add index to worker name ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38863794 )
  Johannes Petzold:
     don't force staging on diego when running on diego ( Travis Unknown )
     rename DIEGO_BETA -> DIEGO_STAGE_BETA [#80165358] ( Travis Unknown )
  Rick Reilly and Serguei Filimonov:
     Deprecate /v2/app_events ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38945989 )
     Merge remote-tracking branch 'origin/app_delete_event' [#80039456] ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38764282 )
  Chris Piraino and Eric Malm:
     Update copy bits API doc to make endpoint experimental ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38855006 )
  Andrew McNutt and Ruth Byers:
     Brokers must declare support in order to upgrade plans ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38776234 )
Bump cloudfoundry/hm-workspace:
  Jeff Hui and Luan Santos:
     Bump HM9000 ( Travis Failed: https://travis-ci.org/cloudfoundry/hm-workspace/builds/39216737 )
     wip ( Travis Success: https://travis-ci.org/cloudfoundry/hm-workspace/builds/39213538 )
Fix manifest generation spec for warden
Bump src/hm9000

Bump cloudfoundry/hm-workspace:
  Jeff Hui and Luan Santos:
     Bump HM9000 ( Travis created: https://travis-ci.org/cloudfoundry/hm-workspace/builds/39218333 )
Bump src/acceptance-tests

Bump :
  John Tuley:
     Fix doppler port in firehose test

Signed-off-by: John Tuley <jtuley@pivotal.io>