chore: update build workflow

.github/workflows/release.yaml

@@ -129,6 +129,7 @@ jobs:
 
       - uses: docker/build-push-action@v6
         name: Build & Push Container Images
+        id: build
         with:
           context: .
           file: Dockerfile
@@ -140,14 +141,65 @@ jobs:
             [email protected]
           platforms: linux/${{matrix.arch}}
           push: true
-          provenance: false
-          sbom: false
           cache-from: type=gha
           cache-to: type=gha,mode=max
           tags: |-
             ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:${{ github.ref_name }}
             ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:latest
 
+      - name: Export digest
+        run: |
+          mkdir -p /tmp/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "/tmp/digests/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-linux-${{matrix.arch}}
+          path: /tmp/digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge:
+    runs-on: ubuntu-latest
+    needs:
+      - images
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp/digests
+          pattern: digests-*
+          merge-multiple: true
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Create manifest list and push
+        working-directory: /tmp/digests
+        run: |
+          docker buildx imagetools create \
+            -t "${{ env.REGISTRY_IMAGE }}:latest" \
+            -t "${{ env.REGISTRY_IMAGE }}:${{ github.ref_name }}" \
+            $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)
+        env:
+          REGISTRY_IMAGE: ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}
+
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:latest
+          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ github.ref_name }}"
+        env:
+          REGISTRY_IMAGE: ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}
+
   helm-chart:
     if: false
     runs-on: ubuntu-latest