Update CNB tools

Author: cf-buildpacks-eng

scripts/integration.sh

@@ -25,7 +25,7 @@ export GIT_TOKEN
 
 echo "Run Buildpack Runtime Integration Tests"
 set +e
-go test -timeout 0 ./integration/... -v -mod=vendor -run Integration
+GOMAXPROCS=4 go test -timeout 0 ./integration/... -v -mod=vendor -run Integration
 exit_code=$?
 
 if [[ "$exit_code" != "0" ]]; then