skylab_local_state: Add test ID to load request.

BUG=chromium:1139071
TEST=./generate

Change-Id: I7d2a57fd320ff1b51c3b5093fd6c8ccad90eaaa1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2527540
Reviewed-by: Sean Abraham <seanabraham@chromium.org>
Commit-Queue: Brigit Rossbach <brigitr@google.com>
2 files changed