Magento 2 how to change customer group based on order status with cron jobs

Question

If customer order status is pending and more than 30 days, how to change customer group to wholesale in crons?

crons should run at every one minute.

This is my code

public function execute()
{
     $today          = date("Y-m-d h:i:s");
     $to             = strtotime('-02 min', strtotime($today));
     $to             = date('Y-m-d h:i:s', $to);

    $filterGroupDate      = $this->filterGroup;
    $filterGroupStatus    = clone($filterGroupDate);

     $filterDate      = $this->filterBuilder
         ->setField('updated_at')
         ->setConditionType('to')
         ->setValue($to)
         ->create();
    $filterStatus    = $this->filterBuilder
        ->setField('status')
        ->setConditionType('eq')
        ->setValue('pending_payment')
        ->create();

    $filterGroupDate->setFilters([$filterDate]);
    $filterGroupStatus->setFilters([$filterStatus]);

    $searchCriteria = $this->searchCriteriaBuilder->setFilterGroups(
        [$filterGroupStatus]
    );
    $searchResults  = $this->orderRepository->getList($searchCriteria->create());


    $selectedgroup=3;



    /** @var Order $order */
    foreach ($searchResults->getItems() as $order) {
        $this->orderManagement->cancel($order->getId());
         $customer = $order->getCustomer();
         $customer->setData('customer_group_id', $selectedgroup)->save();



    }
}