net-mgmt/cacti: update to 1.2.29

Changelog: https://github.com/Cacti/cacti/releases/tag/release%2F1.2.29

Security: CVE-2025-22604 / GHSA-c5j8-jxj3-hh36: Authenticated RCE via multi-line SNMP responses
Security: CVE-2025-24368 / GHSA-f9c7-7rc3-574c: SQL Injection vulnerability when using tree rules through Automation API
Security: CVE-2024-54145 / GHSA-fh3x-69rr-qqpp: SQL Injection vulnerability when request automation devices
Security: CVE-2025-24367 / GHSA-fxrq-fr7h-9rqq: Arbitrary File Creation leading to RCE
Security: CVE-2024-45598 / GHSA-pv2c-97pp-vxwg: Local File Inclusion (LFI) Vulnerability via Poller Standard Error Log Path
Security: CVE-2024-54146 / GHSA-vj9g-p7f2-4wqj: SQL Injection vulnerability when view host template

Per maintainer request take maintenership

PR: 284583
Approved by: Michael Muenz <m.muenz@gmail.com> (maintainer)

(cherry picked from commit 3f7707eabeeb878a4a31c2abebd1b07fece25c50)