Builds our atlantis image containing terragrunt. Adds the terragrunt and aws-cli binaries to the official atlantis image
Note
This image is built as a multi-arch image for amd64 and arm64.
We set up a stage for each platform in the Dockerfile and updated the docker/setup-buildx-action and docker/build-push-action accordingly.
To build locally, you might need to set up a multi-arch builder for docker buildx.