Change relative path to absolute path for testability

Author: jissereitsma

app/code/Magento/Ui/view/base/web/js/form/adapter.js

@@ -9,7 +9,7 @@
 define([
     'jquery',
     'underscore'
-    './adapter/buttons'
+    'Magento_Ui/js/form/adapter/buttons'
 ], function ($, _, buttons) {
     'use strict';