MergeServiceNameTypeRector

Merge name === type service registration, $services->set(SomeType::class, SomeType::class)

 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;

 return static function (ContainerConfigurator $containerConfigurator): void {
     $services = $containerConfigurator->services();
-    $services->set(\App\SomeClass::class, \App\SomeClass::class);
+    $services->set(\App\SomeClass::class);
 };

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Symfony\Configs\Rector\Closure\MergeServiceNameTypeRector;

return RectorConfig::configure()
    ->withRules([
        MergeServiceNameTypeRector::class,
    ]);
SETS:  Configs