result_flow: add parent UID to the PublishRequest

Parent UID should be published via result flow's binary
instead of Buildbucket.

BUG=chromium:1114957
TEST=generate.sh

Change-Id: Id7201e31708975007adb1f760b5996fd368615f9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2350584
Commit-Queue: Xinan Lin <linxinan@chromium.org>
Tested-by: Xinan Lin <linxinan@chromium.org>
Reviewed-by: Alex Zamorzaev <zamorzaev@chromium.org>
2 files changed