Bump src/hm9000

Bump cloudfoundry/hm-workspace:
  Onsi Fakhouri and Tim Labeeuw:
     hm9000 now only cares about STAGED desired state ( Travis created: https://travis-ci.org/cloudfoundry/hm-workspace/builds/13600729 )
     fix vcap prefix when logging ( Travis Success: https://travis-ci.org/cloudfoundry/hm-workspace/builds/13548120 )
     fix dump logging in hm9000 ( Travis Success: https://travis-ci.org/cloudfoundry/hm-workspace/builds/13545139 )