fix suffix

Author: elasticroentgen

.github/workflows/docker.yaml

@@ -25,7 +25,7 @@ jobs:
     uses: ethdevops/workflows/.github/workflows/basic-docker-build.yaml@main
     with:
       dockerfile: Dockerfile.rootless
-      tag_suffix: rootless
+      tag_suffix: "-rootless"
     secrets:
       docker_registry_user: ${{ secrets.DOCKER_REGISTRY_USER }}
       docker_registry_password: ${{ secrets.DOCKER_REGISTRY_SECRET }}