chore: modify index.js listobject api

index.js

      * Asynchronously getAsyncObjects
      */
 
-    asyncListObjects (bucketName,prefix='') {
-        return RNAliyunOSS.asyncListObjects(bucketName,prefix,)
+    asyncListObjects (bucketName,options) {
+        return RNAliyunOSS.asyncListObjects(bucketName,options)
     },