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