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Configurable

GetOriginalClassToGetDecoratedClassesRector

Replace deprecated EntityTypeInterface::getOriginalClass() with getDecoratedClasses()[0].

-$originalClass = $entityType->getOriginalClass();
+$originalClass = $entityType->getDecoratedClasses()[0];

Configure your rector.php:

<?php

use DrupalRector\Drupal11\Rector\Deprecation\GetOriginalClassToGetDecoratedClassesRector;
use DrupalRector\Rector\ValueObject\DrupalIntroducedVersionConfiguration;
use Rector\Config\RectorConfig;

return RectorConfig::configure()
    ->withConfiguredRule(GetOriginalClassToGetDecoratedClassesRector::class, [
        new DrupalIntroducedVersionConfiguration('11.4.0'),
    ]);