When enabling ufw some sysctl settings get overridden causing CIS failures

[jrbeilke]

When ufw is enabled it includes its own sysctl settings which override some of the settings needed for the CIS benchmark ie.

• log_martians for SCORED | 3.2.4 | PATCH | Ensure suspicious packets are logged

https://serverfault.com/questions/745995/enabling-ufw-disables-some-of-the-settings-in-sysctl-conf

If ufw is enabled then it seems the Ansible role will need to also update any relevant sysctl settings in /etc/ufw/sysctl.conf