Update checked numerics library.
This library hadn't been updated in quite some time and had bugs
which affected UBSAN in some operators.
Bug: angleproject:5795
Change-Id: I40f658655034ce03df29cf4c71acb3f6fe96bef0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3289941
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
