add builder for stable release (WIP)

.github/workflows/release_stable.yml

@@ -0,0 +1,56 @@
+name: Publish Dotclear unstable image to Docker Hub
+
+on:
+  push:
+  schedule:
+  - cron: '0 3 * * *'
+
+env:
+  IMAGE_NAME: jcpd/docker-dotclear:dev
+  DOTCLEAR_CANAL: unstable
+
+jobs:
+  push_to_docker_hub:
+    name: Push Docker image to registry
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+      attestations: write
+      id-token: write
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Build and push image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          sbom: true
+          push: true
+          tags: ${{ env.IMAGE_NAME }}
+          build-args: CANAL=${{ env.DOTCLEAR_CANAL }}
+          platforms: linux/386,linux/amd64,linux/arm/V6
+
+      - name: Send Telegram Message Ok
+        uses: appleboy/telegram-action@master
+        env:
+          GITHUB_CONTEXT: ${{toJSON(github)}}
+        with:
+          to: ${{ secrets.TELEGRAM_ID }}
+          token: ${{ secrets.TELEGRAM_TOKEN }}
+          format: markdown
+          message: |
+            Image successfully generated.
+            __Repository:__ *${{github.repository}}
+            __Image:__ ${{ env.IMAGE_NAME }}
+            __Canal:__ ${{ env.DOTCLEAR_CANAL }}