OSV-2022-457 Heap-buffer-overflow in CFF::Charset::collect_glyph_to_sid_map

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47790 Crash type: Heap-buffer-overflow READ 2 Crash state: CFF::Charset::collectglyphtosidmap cffsubsetplan::plansubsetcharset cffsubsetplan::create...