Pre-CQ runs are failing due to GoB bandwidth being exceeded (both short-term and daily):
https://uberchromegw.corp.google.com/i/chromeos/builders/pre-cq-launcher/builds/7499
Fetching project chromiumos/third_party/bluremote: Short term bandwidth rate limit exceeded for 3su6n15k.default@developer.gserviceaccount.com
fatal: protocol error: bad pack header
remote: Short term bandwidth rate limit exceeded for 3su6n15k.default@developer.gserviceaccount.com
fatal: protocol error: bad pack header
error: Cannot fetch chromiumos/overlays/chromiumos-overlay

error: Exited sync due to fetch errors


https://uberchromegw.corp.google.com/i/chromeos/builders/pre-cq-launcher/builds/7498
Fetching project chromeos/overlays/overlay-squawks-premote: Daily bandwidth rate limit exceeded for 3su6n15k.default@developer.gserviceaccount.com
fatal: protocol error: bad pack header
rivate


Similar to  issue 624460  but appears to be a different role account for the Pre-CQ instead of CQ.