refactor: remove extended collection (#6246)

Co-authored-by: iCrawl <buechler.noel@outlook.com>

src/util/LimitedCollection.js

@@ -1,6 +1,6 @@
 'use strict';
 
-const Collection = require('./Collection.js');
+const { Collection } = require('@discordjs/collection');
 
 /**
  * A Collection which holds a max amount of entries. The first key is deleted if the Collection has