Fix push-to-github Kokoro builder
Fix push-to-github Kokoro builder

One more fix. Everything seems to work, but the remote is rejecting
an update of the active main branch. Hopefully the last fix needed.

BUG=b:199692764
TEST=Testing in prod.

Change-Id: I4f341cc374080454317cb3ac29cade59fec6aeee
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3229958
Tested-by: Dennis Kempin <cd09796fb571bec2782819dbfd33307f65b1c778@google.com>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Daniel Verkamp <72bc170b46ec491f7bdd4359a1c0bfed274de40c@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm