Updating fonttools 4.31.2 to fonttools 4.33.3 am: fc762b5499

Original change: https://android-review.googlesource.com/c/platform/external/fonttools/+/2097373

Change-Id: Ib87b65553d78d6b380c2d4fabd74f4b6cbd5b89c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>