Merge pull request rhobs#6 from bison/ppc64le-s390x

Publish ppc64le and s390x images

Author: bison

.github/workflows/docker-publish.yml

@@ -71,7 +71,7 @@ jobs:
         id: qemu
         uses: docker/setup-qemu-action@v1
         with:
-          platforms: arm64
+          platforms: arm64,ppc64le,s390x
 
       - name: Set up Docker Buildx
         id: buildx
@@ -94,6 +94,6 @@ jobs:
         with:
           context: .
           file: ./Dockerfile
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x
           tags: ${{ steps.setup.outputs.tags }}
           push: true