fix ansible-lint error by not comparing to literal false

playbooks/roles/nginx/tasks/main/config_deploy.yaml

@@ -7,7 +7,7 @@
   when: nginx__use_custom_nginx_conf
   block:
     - name: when no `nginx.conf.ansiblesave` is present, save the current `nginx.conf`
-      when: nginx__nginx_conf_ansiblesave_stat_result.stat.exists == false
+      when: not nginx__nginx_conf_ansiblesave_stat_result.stat.exists
       ansible.builtin.copy:
         force: true
         dest: /etc/nginx/nginx.conf.ansiblesave