update_packages_and_run_tests: set wip on uploaded changes

BUG=b:331607705
TEST=repo upload

Change-Id: If7bbd445f89663a71d922021745a94f856b18758
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/5402395
Reviewed-by: Ryan Beltran <ryanbeltran@chromium.org>
Tested-by: George Burgess <gbiv@chromium.org>
Commit-Queue: George Burgess <gbiv@chromium.org>
2 files changed