Add CPT permalink base to breadcrumbs

cpt-breadcrumbs.php

<?php
/*
 * Add CPT base to breadcrumbs
 */
function my_wpseo_breadcrumb_links( $links ) {
    if ( is_single() ) {
        $cpt_object = get_post_type_object( get_post_type() );
        if ( ! $cpt_object->_builtin ) {
            $landing_page = get_page_by_path( $cpt_object->rewrite['slug'] );
            array_splice( $links, -2, 1, array( array( 'id' => $landing_page->ID ) ));
        }
    }
    return $links;
}
add_filter( 'wpseo_breadcrumb_links', 'my_wpseo_breadcrumb_links' );