feature(alipay): add logger for dingtalk request error

@@ -2,6 +2,7 @@ const _ = require('lodash');
 const ddAlert = require('./dingding-alert');
 const MIN_SEND_INTERVAL = 10 * 1000;
 const moment = require('moment');
+const logger = global.yoho.logger;
 
 const AlertManager = {
   isAtAll: false,
@@ -28,7 +29,10 @@ const AlertManager = {
       return agent.getMarkdownReport();
     }));
 
-    ddAlert(text.join('\n'), _.uniq(ats), this.isAtAll);
+    ddAlert(text.join('\n'), _.uniq(ats), this.isAtAll)
+      .catch(e => {
+        logger.warn('AlertManager send dingtalk alert:', e);
+      });
     this.lastSendTime = now;
     this.pendingAgents = {};
   }