while loop hangs the flow, will use background

.github/workflows/nightly.yml

@@ -39,7 +39,7 @@ jobs:
           apt install -y netcat-traditional
           while true; do
             echo "HTTP/1.1 200 OK\\n\\nHello from dummy server" | nc -l -p 443 -q 1
-          done
+          done &
       - name: Try curl the dummy server on port 443
         run: |
           curl -k https://localhost:443