www/librewolf: Update 139.0.1-1 => 139.0.4-1
Release Notes:
https://www.mozilla.org/en-US/firefox/139.0.4/releasenotes/
PR: 287515
Security: CVE-2025-49709
Security: CVE-2025-49710
MFH: 2025Q2
(cherry picked from commit dd1081b7839eae23aa1159adbda950ead8db9bca)