Working on image push

This seems to be a case of the following:

docker/login-action#173

.github/workflows/docker-publish.yml

@@ -60,6 +60,7 @@ jobs:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
+          logout: false
 
       # Extract metadata (tags, labels) for Docker
       # https://github.com/docker/metadata-action