🚨 roles: setup_http_site_proxy: Fix fqcn linter warnings

fqcn[action-core]: Use FQCN for builtin module actions (service).
    roles/setup_http_site_proxy/handlers/main.yml:2 Use `ansible.builtin.service` or `ansible.legacy.service` instead.

    fqcn[action-core]: Use FQCN for builtin module actions (template).
    roles/setup_http_site_proxy/tasks/main.yml:2 Use `ansible.builtin.template` or `ansible.legacy.template` instead.

    fqcn[action-core]: Use FQCN for builtin module actions (command).
    roles/setup_http_site_proxy/tasks/main.yml:9 Use `ansible.builtin.command` or `ansible.legacy.command` instead.

roles/setup_http_site_proxy/handlers/main.yml

@@ -1,5 +1,5 @@
 ---
 - name: Restart apache2
-  service:
+  ansible.builtin.service:
     name: apache2
     state: restarted

roles/setup_http_site_proxy/tasks/main.yml

@@ -1,13 +1,13 @@
 ---
 - name: Add or update Apache2 site
-  template:
+  ansible.builtin.template:
     src: templates/apache-docker-proxy-site.j2
     dest: /etc/apache2/sites-available/{{ site_name }}.conf
     mode: "0644"
   notify: Restart apache2
 
 - name: Activate Apache2 site
-  command: a2ensite {{ site_name }}
+  ansible.builtin.command: a2ensite {{ site_name }}
   args:
     creates: /etc/apache2/sites-enabled/{{ site_name }}.conf
   notify: Restart apache2