ci(workflows): use sub-actions

.github/workflows/__build-push.yml

@@ -0,0 +1,50 @@
+on:
+  workflow_call:
+    inputs:
+      runs_on:
+        type: string
+        required: true
+      platform:
+        type: string
+        required: true
+      gotenberg_version:
+        type: string
+        required: true
+      alternate_repository:
+        type: string
+        default: ''
+    outputs:
+      tags:
+        value: ${{ jobs.build_push.outputs.tags }}
+
+permissions:
+  contents: read
+
+jobs:
+  build_push:
+    runs-on: ${{ inputs.runs_on }}
+    outputs:
+      tags: ${{ steps.build_push.outputs.tags }}
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Build and push ${{ inputs.platform }}
+        id: build_push
+        uses: gotenberg/gotenberg-release-action/actions/build-push@main
+        with:
+          version: ${{ inputs.gotenberg_version }}
+          platform: ${{ inputs.platform }}
+          alternate_repository: ${{ inputs.alternate_repository }}