Ensure AIDE runs regularly. (#40)

Do not create weekly cron if the apt-provided /etc/cron.daily/aide file exists.
Update cron file settings to match comment and run weekly, not daily.

Co-authored-by: Karl DeBisschop <karl.debisschop@bioraft.com>

fixed combatibility for Ansible >2.12 (#36)

Mask systemd-timesyncd only when it is loaded (#31)

Change release to focal (#8)