Set default integration region to us-east1

us-east4 is not supported by Cloud Functions

Author: aaron-lane

test/integration.sh

@@ -28,8 +28,8 @@ if [ -z "${SERVICE_ACCOUNT_JSON}" ]; then
 fi
 
 export TF_VAR_project_id="${PROJECT_ID}"
-export TF_VAR_region="${REGION:-us-east4}"
-export TF_VAR_zone="${ZONE:-us-east4-a}"
+export TF_VAR_region="${REGION:-us-east1}"
+export TF_VAR_zone="${ZONE:-us-east1-b}"
 
 DELETE_AT_EXIT="$(mktemp -d)"
 finish() {