update code

quickstart/201-postgresql-fs-db/output.tf

@@ -1,3 +1,7 @@
+output "resource_group_name" {
+    value = azurerm_resource_group.default.name
+}
+
 output "postgresql_flexible_server_database_name" {
     value = azurerm_postgresql_flexible_server_database.default.name
 }