fix：CIHost兼容处理

Author: livehigh

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cos-nodejs-sdk-v5",
-  "version": "2.11.1",
+  "version": "2.11.2",
   "description": "cos nodejs sdk v5",
   "main": "index.js",
   "types": "index.d.ts",

sdk/util.js

@@ -637,10 +637,7 @@ var isWeb = function () {
 }
 
 var isCIHost = function(url) {
-    if (url && url.split('?')[0].match(/(.ci.|ci.|.ci)/g)) {
-        return true;
-    }
-    return false;
+  return /^https?:\/\/([^/]+\.)?ci\.[^/]+/.test(url);
 }
 
 var util = {