统一上报增加 timestamp

package.json

 {
   "name": "nodejs-yitong-sdk",
-  "version": "1.0.0",
+  "version": "1.0.2",
   "description": "",
   "main": "index.js",
   "scripts": {

yitong-sdk.js

@@ -377,6 +377,7 @@ function track(opts) {
         ctx.track = true; // 全部接口收集
         ctx.trackEvent = {
             __referer__: `${opts.serviceName}:${ctx.path}`,
+            timestamp: Date.now(),
             app_key: ctx.getAppKey() || _.get(ctx.token, 'aud') || opts.appKey,
             event: {
                 key: 'api'