Publish Arm64 Docker image

[keynmol]

It is possible to publish multi-platform images to Dockerhub: https://docs.docker.com/build/building/multi-platform/#building-multi-platform-images

Would be good to have a linux/arm64 image published, as it would speed up considerably the development process for people using Apple Silicon hardware.

Considerations:

• While it's possible to build arm64 image on x86 "hardware" (github actions), it will be very slow. It's best to utilis existing apple silicon hardware you use for building aarch64 darwing binaries.