'create(org.elasticsearch.action.admin.indices.create.CreateIndexRequest, org.elasticsearch.client.RequestOptions)' is deprecated 替代方法

`create`方法已经被弃用，可以使用`indices().create(CreateIndexRequest request, RequestOptions options)`方法来替代。具体实现如下：

IndicesClient indicesClient = restHighLevelClient.indices();
CreateIndexRequest request = new CreateIndexRequest("my_index");
indicesClient.create(request, RequestOptions.DEFAULT);