Upgrade fonttools to 4.19.0 am: f8d82f7a26 am: 104832b19d am: 5bd3cf43f5 am: 4d11c5532a

Original change: https://android-review.googlesource.com/c/platform/external/fonttools/+/1559685

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ifd89f1a0c501b1791a25fc605d531011daf1dda0