Add build and push so that we can build arm64

.github/workflows/build.yaml

@@ -24,22 +24,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: docker/setup-buildx-action@v3
-        name: Set up Docker Buildx
-
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: lsst-dm/build-and-push@main
         with:
+          platforms: linux/amd64,linux/arm64
           push: true
-          tags: ghcr.io/${{ github.repository }}:${{ matrix.rhel }}-${{ inputs.base_tag }}-${{ inputs.rubin_env }}
-          file: Dockerfile
+          tags: ${{ matrix.rhel }}-${{ inputs.base_tag }}-${{ inputs.rubin_env }}
           build-args: |
             LSST_SPLENV_REF=${{ inputs.rubin_env }}
             BASE_IMAGE=ghcr.io/lsst-dm/docker-scipipe:${{ matrix.rhel }}-${{ inputs.base_tag }}