x11-fonts/libXfont2: Update to 2.0.9

https://lists.x.org/archives/xorg-announce/2026-August/003735.html

PR: 297327
Approved by: x11 (arrowd)
Approved by: osa (mentor)
MFH: 2026Q3
Security: CVE-2026-59679
Security: CVE-2026-44950

(cherry picked from commit ec33b51dcfd9b4fb7591b35af75d9c37b9fbbb7e)