wp_update_site WordPress Action Hook
The wp_update_site hook is called after a site has been updated. The hook takes two arguments: the first argument is the ID of the site being updated, and the second argument is the data that was updated.
do_action( 'wp_update_site',  WP_Site $new_site ,  WP_Site $old_site  ) #
Fires once a site has been updated in the database.