fix: added platform support for ghcr.io images to be run on Apple Sil…

[melvinebenezer]

Added support for multiple platforms for ghcr.io images.

When running this image on an x86_64 / amd64 machine, the amd64 variant is pulled and run.

Reference: https://docs.docker.com/engine/reference/commandline/buildx_build/#platform https://docs.docker.com/build/building/multi-platform/