adding automatic cleanup of docker images and containers every 6 hours
adding automatic cleanup of docker images and containers every 6 hours

ros-infrastructure/buildfarm_deployment,ros-infrastructure/buildfarm_deployment,clearpathrobotics/buildfarm_deployment,clearpathrobotics/buildfarm_deployment,clearpathrobotics/buildfarm_deployment,ros-infrastructure/buildfarm_deployment,ros-infrastructure/buildfarm_deployment