add rector

Author: mimmi20

rector.php

@@ -15,8 +15,7 @@
 use Rector\DeadCode\Rector\If_\RemoveAlwaysTrueIfConditionRector;
 use Rector\DeadCode\Rector\If_\RemoveDeadInstanceOfRector;
 use Rector\DeadCode\Rector\StaticCall\RemoveParentCallWithoutParentRector;
-use Rector\Php81\Rector\Array_\FirstClassCallableRector;
-use Rector\Php81\Rector\FuncCall\NullToStrictStringFuncCallArgRector;
+use Rector\DeadCode\Rector\StmtsAwareInterface\RemoveDeadInstanceOfAssertRector;
 use Rector\Php81\Rector\Property\ReadOnlyPropertyRector;
 use Rector\PHPUnit\Set\PHPUnitSetList;
 use Rector\Set\ValueObject\LevelSetList;
@@ -36,11 +35,10 @@
 
     $rectorConfig->skip(
         [
-            NullToStrictStringFuncCallArgRector::class,
             RemoveDeadInstanceOfRector::class,
-            FirstClassCallableRector::class,
             RemoveAlwaysTrueIfConditionRector::class,
             RemoveParentCallWithoutParentRector::class,
+            RemoveDeadInstanceOfAssertRector::class,
         ],
     );