Merge pull request #5 from fontebasso/php8

setup qemu to build arm64

Author: fontebasso

.github/workflows/build.yaml

@@ -18,6 +18,9 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v1