Steps to reproduce

Use the FilesystemStack object's chgrp() or chown() method without the optional 3rd parameter (recursive)

   $this->taskFilesystemStack()
      ->chgrp('www', 'www-data')
      ->run();

Expected behavior

Change of group or owner should be performed on the element without recursion.

Actual behavior

PHP Fatal error:  Uncaught TypeError: Symfony\Component\Filesystem\Filesystem::chgrp(): Argument #3 ($recursive) must be of type bool, null given, called in /tmp/test/vendor/consolidation/robo/src/Task/Filesystem/FilesystemStack.php

System Configuration

PHP 8.1
Symfony 6.4.8

Origin

In /src/Task/Filesystem/FilesystemStack.php, in the signature of the _chgrp() and _chown() methods, the default value of the $recursive parameter should be FALSE (null given).

    protected function _chgrp($file, $group, $recursive = null)
[...]
    protected function _chown($file, $user, $recursive = null)