feat: add DockerURL type to fix cache_docker_images_locally=false#851

rutayan-nv wants to merge 2 commits intoNVIDIA:mainNVIDIA/cloudai:mainfrom

rutayan-nv:fix/docker-url-type-for-cache-disabledrutayan-nv/cloudai:fix/docker-url-type-for-cache-disabledCopy head branch name to clipboard