Convert phpBB 3.2 post content in DB to BBcodes

<?php
if (php_sapi_name() != "cli") die("You can only run this from CLI.");
ini_set('max_execution_time', 60000);
//define('WP_MEMORY_LIMIT', '2048M');
chdir(dirname(__FILE__));
define('WP_USE_THEMES', false);
require('../forum/wp-blog-header.php');

ob_end_flush();
global $wpdb;

include __DIR__ . '/vendor/autoload.php';
// Use the Forum bundle. It supports BBCodes, emoticons and autolinking
use s9e\TextFormatter\Bundles\Forum as TextFormatter;

$query = new WP_Query([
    'numberposts' => -1,
    'posts_per_page'=> -1,
    'post_type' => [ bbp_get_topic_post_type(), bbp_get_reply_post_type() ]
]);

$i = 0;
while ($query->have_posts()) {
    $query->the_post();
    global $post;
    echo $i++ . " / " . $query->found_posts . " =========================== $post->ID : $post->post_title\n";

    wp_update_post([
        'ID' => get_the_ID(),
        'post_content' => TextFormatter::unparse($post->post_content)
    ]);
}