net-mgmt/cacti: update 1.2.30 -> 1.2.31

Changelog: https://github.com/Cacti/cacti/releases/tag/release%2F1.2.31

Major changes:

• Fix 33 CVEs, see list bellow
• Fix 49 issues
• 9 features

PR: 296105
Reported by: Dani I <i.dani@outlook.com>

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

MFH: 2026Q2