bot_scaling: ResourceUtilization needs to be repeated

ApplicationUtilization should have repeated ResourceUtilization
messages to store usage per region.

Bug: b:170660661
Change-Id: If7faf6d318db9a15c24194e8987b976956436a04
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2469307
Reviewed-by: Navil Perez <navil@google.com>
Reviewed-by: Dhanya Ganesh <dhanyaganesh@chromium.org>
Commit-Queue: Mike Nichols <mikenichols@chromium.org>
2 files changed