Set the certbot_force_update to false required by certbot_nginx
After this commit in CertbotNGINX the var certbot_force_update is required: https://github.com/coopdevs/certbot_nginx/commit/c03ec68a2113f2a39201079aedb7f932d773539b#diff-838833243017e967f055c6677bc3bc8b