Upgrade fonttools to 4.13.0 am: a7ee29ebd4 am: 77b3af4a02 am: 73ab678a62 am: f85ec0aa62

Original change: https://android-review.googlesource.com/c/platform/external/fonttools/+/1360891

Change-Id: I71dab4c7f751d29a0286364ab35dac8a4f7868b1