fix(接口测试): 场景下无请求控制台报错

frontend/src/business/components/api/test/components/request/ApiRequestConfig.vue

@@ -156,6 +156,9 @@ export default {
       }
     },
     select(request) {
+      if (!request) {
+        return;
+      }
       request.environment = this.scenario.environment;
       if (!request.useEnvironment) {
         request.useEnvironment = false;