bump inigo
bump inigo

[finishes #130616967]

Submodule src/code.cloudfoundry.org/inigo 61c9e1d..a67a49e:
  > Update inigo with tests for SSH Proxy HealthCheck

Signed-off-by: Nima Kaviani <0ebde517669f70c2aec92dc89d4950413b825ec0@us.ibm.com>

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