Drop usage of setup-qemu-action

[bilelmoussaoui]

The action doesn't do anything complicated. We should provide a base aarch64 image that already contains whatever is needed for emulation through qemu to work.

[tytan652]

Potential solution would be to rely on qemu-user-static- packages.

The main issue is that the binfmt registering apparently can only be done while running the image not while creating it.
Fedora usually does it with systemd-binfmt service, but docker…