Update finalizeBuild
Update finalizeBuild

Bug:1346754
Change-Id: I6b95c2f183c0a54b19bf2e89d55b17b88dc4f6b3
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/luci-go/+/3812638
Reviewed-by: Chan Li <332b6c56634d0f63001046c664a2370006a02420@chromium.org>
Commit-Queue: Yulan Lin <fa22fbbce8ab65d96ec9925b9c61a0c0692eb649@google.com>

luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go