DEPRECATION WARNING in running the Role?

[IoTPlay]

TASK [thefinn93.letsencrypt : install certbot from backports] ********************************************************************************************
[DEPRECATION WARNING]: Invoking "apt" only once while using a loop via squash_actions is deprecated. Instead of using a loop to supply multiple items and
 specifying `pkg: "{{item}}"`, please use `pkg: ['certbot']` and remove the loop. This feature will be removed in version 2.11. Deprecation warnings can 
be disabled by setting deprecation_warnings=False in ansible.cfg.