Add action wpcf7_maybe_add_random_dir ?

Hello! Is it possible to somehow make an action wpcf7_maybe_add_random_dir for a function in your theme?
I need this so that files can be uploaded to s3 bucket

example code

add_action( 'wpcf7_maybe_add_random_dir', function($dir) {
	$rand_max = mt_getrandmax();
    $rand = zeroise( mt_rand( 0, $rand_max ), strlen( $rand_max ) );
    $dir_new = path_join( $dir, $rand );

	if ( wp_mkdir_p( $dir_new ) ) {
		return $dir_new;
	}

	return $dir;
});

this does not work(

code in plugin (contact-form-7/includes/file.php)

function wpcf7_maybe_add_random_dir( $dir ) {
	do {
		$rand_max = mt_getrandmax();
		$rand = zeroise( mt_rand( 0, $rand_max ), strlen( $rand_max ) );
		$dir_new = path_join( $dir, $rand );

        $rand_max = mt_getrandmax();
        $rand = zeroise( mt_rand( 0, $rand_max ), strlen( $rand_max ) );
        $dir_new = path_join( $dir, $rand );

	} while ( file_exists( $dir_new ) );

	if ( wp_mkdir_p( $dir_new ) ) {
		return $dir_new;
	}

	return $dir;
}