news/nzbget: Update 25.4 => 26.0

Changelog:
https://github.com/nzbgetcom/nzbget/releases/tag/v26.0

PR: 294282
Reported by: Alex Levy <a13xlevy@pm.me> (maintainer)
Approved by: maintainer, vvd (co-mentor)
MFH: 2026Q2

(cherry picked from commit 07708ad9abbbc6766fac5d84024c876baf37531d)