fix: bilibili route /bilibili/user/video/:uid bug (#12920)

lib/v2/bilibili/cache.js

@@ -13,7 +13,11 @@ module.exports = {
                     Referer: url,
                 },
             });
-            return response.headers['set-cookie'].map((cookie) => cookie.split(';')[0]).join('; ');
+            const setCookies = response.headers['set-cookie'];
+            if (typeof setCookies === 'undefined') {
+                return '';
+            }
+            return setCookies.map((cookie) => cookie.split(';')[0]).join('; ');
         });
     },
     getVerifyString: (ctx) => {