security/suricata: update to 6.0.8

ChangeLog: https://suricata.io/2022/09/27/suricata-6-0-7-released/

Suricata 6.0.8 fixes 2 issues in the 6.0.7 distribution:

• libhtp 0.5.41 was not actually included
• Suricata-Update 1.3.0dev0 was included instead of 1.2.5

PR: 266715
Reported by: franco@opnsense.org (maintainer)
MFH: 2022Q4 (bugfix release)