Enable Docker images for linux/arm64

[rngtng]

Context

I figured the prism docker images are only available for linux/amd64 architectures. As of this running prism on Apple silicon machines is virtualized with reduced performance. I successfully build an arm64 image locally w/o any modification, so it looks like
it's 'just' a matter of enabling it.

Current Behavior

Running the latest docker image produces the warning, indicating that an amd64 arch image is used, so performance will be reduced due to virtualization.

$ docker run stoplight/prism
WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested

Expected Behavior

No warning, as an image for linux/amd64 arch is found

Possible Solution(s)

Make use of docker buildx to enable multi arch build. Alternatively build the arm image explicit. https://www.docker.com/blog/multi-arch-images/

Let me know how you build and push to docker hub. Happy to advice you further.

[chohmann]

Duplicate of #1966. Closing.

[rngtng]

@chohmann oh ups - Sorry I didn’t saw the original issue. My bad