chore: integrate with rector

rector.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+
+return RectorConfig::configure()
+    ->withPaths([
+        __DIR__.'/src',
+        __DIR__.'/tests',
+    ])
+    ->withImportNames(
+        importShortClasses: false,
+        removeUnusedImports: true,
+    )
+    ->withComposerBased(
+        doctrine: true,
+        symfony: true,
+    )
+    ->withSymfonyContainerXml(
+        __DIR__.'/var/cache/dev/App_KernelDevDebugContainer.xml'
+    )
+    ->withFluentCallNewLine()
+    ->withCache(__DIR__.'/var/rector');