Update blacksmith for docker build

Author: aapolaakkio

.github/workflows/docker-build.yml

@@ -62,7 +62,7 @@ jobs:
         run: echo "version=$(git describe --always --tags)" >> "$GITHUB_OUTPUT"
 
       - name: Push to GitHub Packages
-        uses: docker/build-push-action@v5
+        uses: useblacksmith/build-push-action@v1
         with:
           context: .
           push: true