Fix(judgehost): fetch password

roles/configure_judgehost/tasks/main.yml

@@ -18,12 +18,13 @@
     command: >-
       sed -nr 's/^.*\W+judgehost\W+(.+)$/\1/p'
       /opt/domjudge/domserver/etc/restapi.secret
+  delegate_to: domserver[0]
+  run_once: true
   register: fetch_reg
 - name: Set judgehost facts
   ansible.builtin.set_fact:
     domserver_url: "{{ domserver_url }}"
     judgehost_password: "{{ fetch_reg['stdout'] }}"
-  delegate_to: domserver[0]
   run_once: true
 - name: Show judgehost password
   ansible.builtin.debug: