net-mgmt/cacti-spine: update to 1.2.22

Changes/Bug Fixes:

• When polling time is exceed, spine does not always exit as expected
• Spine logging at -V 5 includes an extra line feed
• Incorrect SNMP responses can cause spine to crash
• Properly handle devices that timeout responding to the Extended Uptime
• MariaDB can cause spine to abort prematurely despite error handling
• Spine should log the error time when exiting via signal