Fix(judgehost): check domjudge base directory

roles/configure_judgehost_legacy/tasks/download.yml

@@ -0,0 +1,25 @@
+- name: Download domjudge tarball
+  ansible.builtin.get_url:
+    url: "{{ domjudge_tarball_url }}"
+    dest: /opt/
+    mode: '0644'
+    owner: root
+    group: root
+  register: downloaded_tarball
+- name: Install domjudge directory
+  ansible.builtin.file:
+    path: "{{ domjudge_base_dir }}"
+    state: directory
+    recurse: true
+    mode: '0700'
+    owner: root
+    group: root
+- name: Extract domjudge tarball
+  ansible.builtin.unarchive:
+    src: "{{ downloaded_tarball.dest }}"
+    dest: "{{ domjudge_base_dir }}"
+    remote_src: true
+  register: domjudge_extracted
+- name: Set new domjudge_base_dir
+  ansible.builtin.set_fact:
+    domjudge_base_dir: "{{ domjudge_extracted.dest }}"