net-mgmt/p5-FusionInventory-Agent: update to 2.6

• Update to 2.6
• Discard CONFLICTS not in ports tree
• Discard NO-OP OPTIONS: VMWARE, ZLIB
• Add missing XML::XPath dependency for DAEMON OPTION
• Pet portlint (USES, makepatch)

Changelog: https://github.com/fusioninventory/fusioninventory-agent/releases/tag/2.6

PR: 280452
Approved by: freebsd@simweb.ch (maintainer timeout)