Login to container registry during manifest merge

.github/workflows/build.yml

@@ -81,7 +81,7 @@ jobs:
         with:
           platforms: ${{ matrix.build_configuration.platform }}
           labels: ${{ steps.meta.outputs.labels }}
-          outputs: type=image,name=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true
+          push: true
           build-args: |
             TARGET=${{ matrix.build_configuration.triple }}
             TARGET_CPU=${{ matrix.build_configuration.cpu }}
@@ -109,6 +109,11 @@ jobs:
 
   merge:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      attestations: write
+      id-token: write
     needs:
       - build
     steps:
@@ -119,6 +124,13 @@ jobs:
           pattern: digests-*
           merge-multiple: true
 
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3