added QEMU to build armv6 images

Author: kbudde

.github/workflows/release.yml

@@ -35,9 +35,16 @@ jobs:
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
       - 
         name: Docker Setup Buildx
+        id: buildx
         uses: docker/[email protected]
+      -
+        name: Available buildx platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
       -
         name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v3