ubuntu-19 is not supported

[berlinguyinca]

currently it look like ubuntu 19 is not supported. Is it possible to have a fallback to 18.04 in this case?

fatal: [workstation-*]: FAILED! => {"changed": false, "dest": "/etc/apt/sources.list.d/nvidia-docker.list", "elapsed": 0, "msg": "Request failed", "response": "HTTP Error 404: Not Found", "status_code": 404, "url": "https://nvidia.github.io/nvidia-docker/ubuntu19.04/nvidia-docker.list"}