Provider arm64 container image

[geigerzaehler]

Should be as easy as setting the platform options. The problem with this is that we cant use the load option of docker/build-push-action@v6 with mutli-arch images. Maybe we can use the tar output and load the image manually with docker load?

[christian-andersson]

can you use something like described here?
https://dev.to/pradumnasaraf/publishing-multi-arch-docker-images-to-ghcr-using-buildx-and-github-actions-2k7j