Have custom post type posts show under regular posts in sitemap (Yoast)

I have a custom post type called FAQs, and I’m using Yoast SEO to generate a sitemap. The sitemap gets generated like it should, but it creates a completely separate sitemap for the FAQ post type, so example.com/faq-sitemap.xml. That makes sense, but I’m wondering if there’s a way I could keep the custom post type of FAQ but have the FAQ posts show up under the example.com/post-sitemap.xml instead, and then example.com/faq-sitemap.xml wouldn’t even exist anymore.

Here’s the code to create the custom post type.

function create_faq_post_type() { // Set UI labels for Custom Post Type $  labels = array(     'name'                => _x( 'FAQs', 'Post Type General Name' ),     'singular_name'       => _x( 'FAQ', 'Post Type Singular Name' ),     'menu_name'           => __( 'FAQs' ),     'parent_item_colon'   => __( 'Parent FAQ' ),     'all_items'           => __( 'All FAQs' ),     'view_item'           => __( 'View FAQ' ),     'add_new_item'        => __( 'Add New FAQ' ),     'add_new'             => __( 'Add New' ),     'edit_item'           => __( 'Edit FAQ' ),     'update_item'         => __( 'Update FAQ' ),     'search_items'        => __( 'Search FAQ' ),     'not_found'           => __( 'Not Found' ),     'not_found_in_trash'  => __( 'Not found in Trash' ) );  // Set other options for Custom Post Type $  args = array(     'label'               => __( 'faqs' ),     'description'         => __( 'frequently asked questions' ),     'labels'              => $  labels,     // Features this CPT supports in Post Editor     'supports'            => array( 'title', 'editor', 'thumbnail', 'author', 'comments', 'custom-fields' ),     'hierarchical'        => true,     'public'              => true,     'show_ui'             => true,     'show_in_menu'        => true,     'show_in_nav_menus'   => true,     'show_in_admin_bar'   => true,     'menu_position'       => 5,     'can_export'          => true,     'has_archive'         => true,     'exclude_from_search' => false,     'publicly_queryable'  => true,     'taxonomies'  => array( 'category', 'post_tag' ),     'rewrite' => array('slug' => '%category%') );  // Registering faq custom post type register_post_type( 'faq', $  args ); }  // Hooking up the faq custom post type function to theme setup add_action( 'init', 'create_faq_post_type', 0 ); 

Kind of a weird request, but that’s what the SEO is wanting to do unfortunately.