PHP 8.2 Warnings/Errors: Trying to access array offset on value of type null in menu_workbench_access_default_form_alter()

Added a patch to fix this, the patch will check if $parent["#options"]) is empty or not (at the function menu_workbench_access_default_form_alter() ) and returns nothing if the array element doesn't exist or is empty:

function menu_workbench_access_default_form_alter(&$form, &$form_state, $options) {
  if (!isset($form['menu'])) {
    return;
  }

  // If no options, then no access.
  if (empty($options)) {
    $form['menu']['#access'] = FALSE;
    return;
  }

  // Nothing to do if we're not limiting menu items.
  if (!variable_get('workbench_access_menu_limit', 1)) {
    return;
  }

  // Note that we require menu data for access control.
  $form['menu']['enabled']['#description'] = t('To enforce access control, this content must be placed in the menu.');

  // Adjust the parent form.
  $parent = &$form['menu']['link']['parent'];

  // No parent options are set return nothing for now
  if (!isset($parent["#options"]) && empty($parent["#options"])) {
    return;
  }
....