Issue #3269792: Update hook

<?php

/**

 * @file

 * Post-update functions for advancedform module.

 */

/**

 * Rename settings to advancedform.settings.

 */ 

function advancedform_post_update_rename_settings() : void {

  $old = \Drupal::configFactory()->getEditable('advancedform.advancedformsettings');

  $new = \Drupal::configFactory()->getEditable('advancedform.settings');

  if ($data = $old->get()) {

    $new->setData($data);

    $new->save();

    $old->delete();

  }

}