Add support for multiple Docker platforms (#736)

Signed-off-by: Stephen Paulger <[email protected]>

Author: stevep-arm

.github/workflows/publish-docker-image.yml

@@ -83,6 +83,7 @@ jobs:
         with:
           context: .
           push: true
+          platforms: linux/amd64,linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}