Scanning Images and importing into ORT via docker

[FabianRolfMatthiasNoll]

I was trying to use ORT also for our container image scanning when someone pointed out i could use scancode directly and then import
that into ORT. But im not getting really smart from the documentation. I want to use the docker container that is provided from scancode because that makes it easier for me.

docker run --rm         
--user root         
-v "$PWD":/codedrop         
-v "/etc/ssl/certs/ca-certificates.crt":/etc/ssl/certs/ca-certificates.crt 
<artifactory-proxy>/enterprise-docker-dev/aboutcode-org/scancode.io:latest 
run analyse_docker_image docker:<image-name> --project test --format ort-package-list

But if i do that its not detected as a valid option:
run run: error: argument --format: invalid choice: 'ort-package-list' (choose from json, spdx, cyclonedx, attribution).

What am i doing wrong.