feat: extend to publish for arm as well as x86

Signed-off-by: Michael Dawson <midawson@redhat.com>

Author: mhdawson

.github/workflows/build-and-publish.yml

@@ -23,6 +23,12 @@ jobs:
       id-token: write
       # 
     steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Checkout repository
         uses: actions/checkout@v4
 
@@ -44,6 +50,7 @@ jobs:
         id: push
         uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
         with:
+          platforms: linux/amd64,linux/arm64
           context: "{{defaultContext}}:container-build-info"
           push: true
           tags: ${{ steps.meta.outputs.tags }}