Feat(judgehost): test legacy with debian11

roles/configure_judgehost_legacy/tasks/domjudge.yml

@@ -0,0 +1,13 @@
+- name: Download domjudge tarball
+  ansible.builtin.get_url:
+    url: "{{ domjudge_tarball_url }}"
+    dest: /opt/
+    mode: '0644'
+    owner: root
+    group: root
+  register: downloaded_tarball
+- name: Extract domjudge tarball
+  ansible.builtin.unarchive:
+    src: "{{ downloaded_tarball.dest }}"
+    dest: "{{ (downloaded_tarball.dest | basename).split('.') | first }}"
+    remote_src: true