Add lsst-dm/build-and-push for github actions

.github/workflows/build.yaml

@@ -4,29 +4,20 @@ name: ci
 on:
   push:
     branches:
-      - master
       - main
+  pull_request:
 
 jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
+      - name: Checkout
+        uses: actions/checkout@v4
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: lsst-dm/build-and-push@main
+        id: build
         with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
           platforms: linux/amd64,linux/arm64
+          image: ${{ github.repository }}
           push: true
-          tags: ghcr.io/${{ github.repository }}:latest