feat: 增加 guokr author 的获取 (#2865)

Co-authored-by: zhshch <zhshch-bin@foxmail.com>

lib/routes/guokr/scientific.js

@@ -14,6 +14,7 @@ module.exports = async (ctx) => {
             description: `${item.summary}<br><img referrerpolicy="no-referrer" src="${item.image_info.url}">`,
             pubDate: item.date_published,
             link: item.url,
+            author: item.author.nickname,
         })),
     };
 };