CI: update workflow

.github/workflows/docker.yml

@@ -1,51 +1,19 @@
-name: Docker
+name: "Docker"
 
 on:
-  push:
-    branches: [master]
-
-jobs:
-  docker:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        include:
-          - version: "latest"
-
-      fail-fast: false
-
-    name: Docker (dockette/vercel:${{ matrix.version }})
+  workflow_dispatch:
 
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Login to DockerHub
-        uses: docker/login-action@v1
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+  push:
+    branches: ["master"]
 
-      - name: Cache Docker layers
-        uses: actions/cache@v2
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-${{ github.sha }}-${{ matrix.version }}
-          restore-keys: |
-            ${{ runner.os }}-buildx-
+  schedule:
+    - cron: "0 8 * * 1"
 
-      - name: Build and push
-        uses: docker/build-push-action@v2
-        with:
-          context: .
-          push: true
-          tags: dockette/vercel:${{ matrix.version }}
-          cache-from: type=local,src=/tmp/.buildx-cache
-          cache-to: type=local,dest=/tmp/.buildx-cache
-          platforms: linux/amd64,linux/arm64
+jobs:
+  build:
+    name: "Build"
+    uses: dockette/.github/.github/workflows/docker.yml@master
+    secrets: inherit
+    with:
+        image: "dockette/vercel"
+        tag: "latest"