fix cs

Author: robotomarvin

src/Type/Php/ArrayFilterFunctionReturnTypeReturnTypeExtension.php

@@ -33,6 +33,7 @@
 use PHPStan\Type\TypeUtils;
 use function array_map;
 use function count;
+use function in_array;
 use function is_string;
 use function strtolower;
 use function substr;