IterateToToIterableRector

Change iterate() => toIterable()

 use Doctrine\ORM\EntityRepository;
 use Doctrine\ORM\Internal\Hydration\IterableResult;

 class SomeRepository extends EntityRepository
 {
-    public function run(): IterateResult
+    public function run(): iterable
     {
         /** @var \Doctrine\ORM\AbstractQuery $query */
         $query = $this->getEntityManager()->select('e')->from('entity')->getQuery();

-        return $query->iterate();
+        return $query->toIterable();
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Doctrine\Orm28\Rector\MethodCall\IterateToToIterableRector;

return RectorConfig::configure()
    ->withRules([
        IterateToToIterableRector::class,
    ]);