Fix for unit tests

.php_cs.php8-migration.php

@@ -0,0 +1,17 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()
+    ->exclude(['vendor'])
+    ->in(__DIR__ . '/src');
+
+$config = new PhpCsFixer\Config();
+return $config
+    ->setRiskyAllowed(true)
+    ->setRules(
+        [
+            '@PHP80Migration' => true,
+            '@PHP80Migration:risky' => true,
+        ]
+    )
+    ->setFinder($finder)
+;