Add back support for ARM64

[benoit74]

Docker image for ARM64 is not building anymore.

I've disabled this architecture image generation for now, but we need to fix this situation.

See https://github.com/openzim/zimit/issues/410#issuecomment-2641948230

[benoit74]

See https://github.com/openzim/zimit/actions/runs/13188088110/job/36814920393 for the logs, but basically building the Docker image does not work on ARM64

[sbeitzel]

As of today (20 November, 2025) I can build this on my Apple Silicon laptop. So, I'm not sure what's up with the build machine that the publishing workflow uses. Anyway, for reference, if anyone else wants to try it on their machines, the command I used and which successfully builds an ARM64 image is:

docker buildx build --platform linux/arm64,linux/amd64 -t ghcr.io/openzim/zimit .

[rgaudin]

Indeed, given it's built off webrecorder/browsertrix-crawler:1.6.0 which supports both arch, it's working.

[benoit74]

Thank you! We should then simply build and publish these images again