Update .rector.php

FirstClassCallableRector got renamed to ArrayToFirstClassCallableRector

Author: Hanmac

.rector.php

@@ -130,7 +130,7 @@
             Php80\Class_\ClassPropertyAssignToConstructorPromotionRector::class, # todo: wait for php80
             Php80\Class_\StringableForToStringRector::class, # todo: wait for php80
             Php80\ClassMethod\AddParamBasedOnParentClassMethodRector::class, # todo: TMP
-            Php81\Array_\FirstClassCallableRector::class, # todo: TMP
+            Php81\Array_\ArrayToFirstClassCallableRector::class, # todo: TMP
             Php81\FuncCall\NullToStrictStringFuncCallArgRector::class, # todo: check later
             Strict\Empty_\DisallowedEmptyRuleFixerRector::class, # todo: TMP
             TypeDeclaration\BooleanAnd\BinaryOpNullableToInstanceofRector::class, # todo: TMP