print/freetype2: enable brotli-support (archivers/brotli) by default

graphics/blender will require brotli in upcoming releases [1]. As brotli
brings no additional runtime dependencies, this can be cheaply added to
the defaults.

PR: 265681
Reported by: Shane <FreeBSD@ShaneWare.Biz>

[1] https://developer.blender.org/rB0830320a7ce8da31dec7c1efd97a7481784b6445