Add weekly automated builds

.github/workflows/weekly.yml

@@ -0,0 +1,83 @@
+---
+name: Weekly
+on:  # yamllint disable-line rule:truthy
+  schedule:
+    - cron: '0 0 * * 0'
+
+jobs:
+  # Builds the Dockerfile and pushes it to dockerhub
+  release:
+    name: Release - Docker image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Docker - Login
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Docker - Metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ github.repository }}
+          # generate Docker tags based on the following events/attributes
+          tags: |
+            type=raw,value=steam
+          flavor: latest=true
+
+      - name: Docker - Build / Push
+        id: docker_build
+        uses: docker/build-push-action@v5
+        with:
+          platforms: linux/arm64
+          target: bullseye
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+
+  release-root:
+    name: Release - Docker image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Docker - Login
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Docker - Metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ github.repository }}
+          # generate Docker tags based on the following events/attributes
+          tags: |
+            type=raw,value=root
+          flavor: latest=false
+
+      - name: Docker - Build / Push
+        id: docker_build
+        uses: docker/build-push-action@v5
+        with:
+          platforms: linux/arm64
+          target: bullseye-root
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}