fix(route): bilibili video pic (#7414)

看起来是b站的api有变化了

lib/routes/bilibili/video.js

@@ -26,7 +26,7 @@ module.exports = async (ctx) => {
             data.data.list.vlist &&
             data.data.list.vlist.map((item) => ({
                 title: item.title,
-                description: `${item.description}${!disableEmbed ? `<br><br>${utils.iframe(item.aid)}` : ''}<br><img src="https:${item.pic}">`,
+                description: `${item.description}${!disableEmbed ? `<br><br>${utils.iframe(item.aid)}` : ''}<br><img src="${item.pic}">`,
                 pubDate: new Date(item.created * 1000).toUTCString(),
                 link: item.created > utils.bvidTime && item.bvid ? `https://www.bilibili.com/video/${item.bvid}` : `https://www.bilibili.com/video/av${item.aid}`,
                 author: name,