Bump src/dea_next, src/hm9000

Bump cloudfoundry/dea_ng:
  Alex Suraci:
     update an instance's ID when updating version ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/13011508 )
  Tim Labeeuw:
     Merge pull request #72 from nebhale/update-java-buildpack ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/13002483 )
  Ben Hale:
     Update Java Buildpack ( Travis Unknown )
Bump cloudfoundry/hm-workspace:
  Iwasaki Yudai:
     Use https URLs for submodules ( Travis Failed: https://travis-ci.org/cloudfoundry/hm-workspace/builds/13009556 )