Use Python3 for infra/config/PRESUMBIT.py Bug: chromium:1313804 Change-Id: Ie327b1bc5babd0198f06398e1390843c7e3159c1 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4018964 Reviewed-by: Roman Lavrov <romanl@google.com> Commit-Queue: Roman Lavrov <romanl@google.com>