Publish multi-arch versioned awx-ee

dependent on ansible/awx-ee#235

Author: TheRealHaoLiu

.github/workflows/promote.yml

@@ -92,6 +92,6 @@ jobs:
 
       - name: Re-tag and promote awx-ee image
         run: |
-          docker pull ghcr.io/${{ github.repository_owner }}/awx-ee:${{ github.event.release.tag_name }}
-          docker tag ghcr.io/${{ github.repository_owner }}/awx-ee:${{ github.event.release.tag_name }} quay.io/${{ github.repository_owner }}/awx-ee:${{ github.event.release.tag_name }}
-          docker push quay.io/${{ github.repository_owner }}/awx-ee:${{ github.event.release.tag_name }}
+          docker buildx imagetools create \
+            ghcr.io/${{ github.repository_owner }}/awx-ee:${{ github.event.release.tag_name }} \
+            --tag quay.io/${{ github.repository_owner }}/awx-ee:${{ github.event.release.tag_name }}

.github/workflows/stage.yml

@@ -102,9 +102,9 @@ jobs:
 
       - name: tag awx-ee:latest with version input
         run: |
-          docker pull quay.io/ansible/awx-ee:latest
-          docker tag quay.io/ansible/awx-ee:latest ghcr.io/${{ github.repository_owner }}/awx-ee:${{ github.event.inputs.version }}
-          docker push ghcr.io/${{ github.repository_owner }}/awx-ee:${{ github.event.inputs.version }}
+          docker buildx imagetools create \
+            quay.io/ansible/awx-ee:latest \
+            --tag ghcr.io/${{ github.repository_owner }}/awx-ee:${{ github.event.inputs.version }}
 
       - name: Stage awx-operator image
         working-directory: awx-operator