github docker registry requires image name below repository name

name unknown: docker image push is only supported with a tag of the format :owner/:repo_name/:image_name.
		Please add an image name to "commercialhaskell/stackage" tag. e.g. "commercialhaskell/stackage/<image_name>"

.github/workflows/image.yml

@@ -19,7 +19,7 @@ jobs:
 
       - name: Build image
         run: |
-          IMAGE_ID=docker.pkg.github.com/${{ github.repository }}:${GITHUB_REF#refs/heads/}
+          IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/build:${GITHUB_REF#refs/heads/}
           docker build . -f Dockerfile --tag $IMAGE_ID
           docker push $IMAGE_ID
           echo Pushed new build image $IMAGE_ID