chore: enhance nightly build workflow with Docker support

- Added a new job for building and pushing Docker images to GitHub Container Registry.
- Configured the workflow to run on multiple platforms (linux/amd64 and linux/arm64) for broader compatibility.
- Implemented steps for checking out code, setting up Docker Buildx, logging into the GitHub Container Registry, and generating metadata for Docker images.
- Updated the Docker actions to their latest versions for improved reliability and security.

These changes improve the nightly build process by integrating Docker image management, ensuring a more robust and efficient workflow.

.github/workflows/nightly-build.yml

@@ -109,4 +109,46 @@ jobs:
           delete_tags: true
           delete_tag_pattern: ^nightly-
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  docker:
+    runs-on: ubuntu-22.04
+    needs: nightly
+    strategy:
+      matrix:
+        platform: [linux/amd64, linux/arm64]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - 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.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Generate downcase repository name
+        run: |
+          echo "REPO=${GITHUB_REPOSITORY,,}" >> ${GITHUB_ENV}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ env.REPO }}
+          tags: |
+            type=raw,value=nightly
+            type=raw,value=nightly-{{date 'YYYYMMDD'}}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}