fixup! Refactored migration to run faster

core/server/data/migrations/versions/4.14/02-fix-free-members-status-events.js

@@ -30,7 +30,7 @@ module.exports = createTransactionalMigration(
             const events = eventsByMember[memberId];
 
             events.sort((a, b) => {
-                return new Date(b) - new Date(a);
+                return new Date(b.created_at) - new Date(a.created_at);
             });
 
             const mostRecentStatusEvent = events[0];