python-utils-r1: Pull from upstream.

BUG=chromium:1111336
TEST=CQ-passes

Change-Id: I8a57e2be88dd541c001a8b03cf1532025c13dc13
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/2328993
Reviewed-by: Alex Klein <saklein@chromium.org>
Tested-by: Allen Webb <allenwebb@google.com>
Commit-Queue: Allen Webb <allenwebb@google.com>