bump cfdot
bump cfdot

[finishes #129376229]

Submodule src/code.cloudfoundry.org/cfdot 69068ee1..024e992d:
  > adds command to fetch the cell presences

cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release