Use concourse/docker-image-resource for test-tiny job, as opposed to custom navcon image
Use concourse/docker-image-resource for test-tiny job, as opposed to custom navcon image

cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci