Log Message:
graphics/freetype2: Bump BUILDLINK_API_DEPENDS to cope with brotli.

Otherwise if an earlier version of freetype2 is installed, dependent
packages fail to build with messages like this:

===> Creating toolchain wrappers for fontconfig-2.14.2
ERROR: brotli>=1.0.1 is not installed; can't buildlink files.

(If there's a better way to deal with this that doesn't trigger
excessive rebuilds of freetype2 when older versions are acceptable,
feel free to do this differently!)