net-mgmt/cacti-spine: Update 1.2.30 => 1.2.31

Changelog:
https://www.cacti.net/info/changelog/1.2.31

PR: 296557
Approved by: Steven Kreuzer <skreuzer@FreeBSD.org> (maintainer, timeout 3 weeks)
Security: CVE-2026-39894
Security: CVE-2026-40082
Security: CVE-2026-40941
Security: CVE-2026-39897
Security: CVE-2026-39900
Security: CVE-2026-46531
Security: CVE-2026-44481
Security: CVE-2026-39952
Security: CVE-2026-39893
Security: CVE-2026-22802
Security: CVE-2026-40080
Security: CVE-2026-40078
Security: CVE-2026-39949
Security: CVE-2026-40081
Security: CVE-2026-39948
Security: CVE-2026-39902
Security: CVE-2026-39898
Security: CVE-2026-41884
Security: CVE-2026-39955
Security: CVE-2026-39896
Security: CVE-2026-39950
Security: CVE-2026-40083
Security: CVE-2026-40084
Security: CVE-2026-39951
Security: CVE-2026-39899
Security: CVE-2026-39938
Security: CVE-2026-39939
Security: CVE-2026-39947
Security: CVE-2026-39895
Security: CVE-2026-40079
Security: CVE-2026-40194
Security: CVE-2026-32935
Security: CVE-2026-1513
Sponsored by: UNIS Labs
MFH: 2026Q3

(cherry picked from commit 2c1f65b2dbfa126d773fc89d2cfb0f28b1a88a5e)