This update for cacti, cacti-spine fixes the following issues:

- cacti 1.2.13:

* Query XSS vulnerabilities require vendor package update
(CVE-2020-11022 / CVE-2020-11023)
* Lack of escaping on some pages can lead to XSS exposure
* Update PHPMailer to 6.1.6 (CVE-2020-13625)
* SQL Injection vulnerability due to input validation failure when
editing colors (CVE-2020-14295, boo#1173090)
* Lack of escaping on template import can lead to XSS exposure

- switch from cron to systemd timers (boo#1115436):
+ cacti-cron.timer
+ cacti-cron.service
- avoid potential root escalation on systems with fs.protected_hardlinks=0
(boo#1154087): handle directory permissions in file section instead
of using chown during post installation
- rewrote apache configuration to get rid of .htaccess files and
explicitely disable directory permissions per default
(only allow a limited, well-known set of directories)