fixed ci page again

Author: ThomasTejedor

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
       env:
         DOCKER_USERNAME: ${{secrets.DOCKER_USERNAME}}
         DOCKER_PASSWORD: ${{secrets.DOCKER_PASSWORD}}
-      run: docker login - u $DOCKER_USERNAME -p $DOCKER_PASSWORD
+      run: docker login -u $DOCKER_USERNAME -p $DOCKER_PASSWORD
 
     - name: Build the Docker image
       run: docker build -t quiz-slayer-env Frontend/.