x11-fonts/libfontenc: Update to 1.1.7

Changelog:
https://gitlab.freedesktop.org/xorg/lib/libfontenc/-/compare/libfontenc-1.1.4...libfontenc-1.1.7?from_project_id=740&straight=false

PR: 272829
Reviewed by: x11 (manu)
Sponsored by: Blinkinblox