adding tag for env and auth json creation

playbooks/roles/edxapp/tasks/service_variant_config.yml

@@ -3,6 +3,7 @@
     src={{ item }}.env.json.j2
     dest={{ edxapp_app_dir }}/{{ item }}.env.json
   sudo_user: "{{ edxapp_user }}"
+  tags: edxapp_cfg
   with_items: service_variants_enabled
   notify:
   - "restart edxapp"
@@ -13,6 +14,7 @@
     src={{ item }}.auth.json.j2
     dest={{ edxapp_app_dir }}/{{ item }}.auth.json
   sudo_user: "{{ edxapp_user }}"
+  tags: edxapp_cfg
   notify:
   - "restart edxapp"
   - "restart edxapp_workers"