plugins – Replace present submit dates to random dates and time

I discovered this resolution nevertheless it’s not working now (I get a deadly error), can anybody please replace the code so its works with WordPress 6.1 (Unique Publish: Replace present submit dates to random dates)

<?php
/**
 * Plugin Identify: WPSE 259750 Random Dates
 * Description: On activation, change the dates of all posts to random dates
 */

//* We wish to do that solely as soon as, so add hook to plugin activation
register_activation_hook( __FILE__ , 'wpse_259750_activation' );
operate wpse_259750_activation() {

  //* Get all of the posts
  $posts = get_posts( array( 'numberposts' => -1, 'post_status' => 'any' ) );
  foreach( $posts as $submit ) {

    //* Generate a random date between January 1st, 2015 and now
    $random_date = mt_rand( strtotime( '1 January 2015' ), time() );
    $date_format="Y-m-d H:i:s";

    //* Format the date that WordPress likes
    $post_date = date( $date_format, $random_date );

    //* We solely wish to replace the submit date
    $replace = array(
      'ID' => $post->ID,
      'post_date' => $post_date,
      'post_date_gmt' => null,
    );

    //* Replace the submit
    wp_update_post( $replace );
  }
}

I’ve an enormous quantity of posts, I feel on this code attempting to tug all posts at a time so if attainable perhaps we will add a batch system?