cloudbuild: do not run make build in parallel

Cloudbuilds seem to fail the controller build but pass the sidecar
build. Try building without parallel builds to see if that helps.

Signed-off-by: Blaine Gardner <[email protected]>

Author: BlaineEXE

hack/cloudbuild.sh

@@ -23,7 +23,7 @@ export SIDECAR_TAG="${SIDECAR_IMAGE}:${GIT_TAG}"
 export CONTROLLER_TAG="${CONTROLLER_IMAGE}:${GIT_TAG}"
 
 # build in parallel
-make --jobs --output-sync build
+make build
 
 # add latest tag to just-built images
 gcloud container images add-tag "${CONTROLLER_TAG}" "${CONTROLLER_IMAGE}:latest"