fix: allow empty for github feed (#4174)

lib/routes/github/star.js

@@ -38,6 +38,7 @@ module.exports = async (ctx) => {
     const data = response.data.data.repository.stargazers.edges.reverse();
 
     ctx.state.data = {
+        allowEmpty: true,
         title: `${user}/${repo}’s stargazers`,
         link: host,
         item: data.map((follower) => ({