add_action( 'wp_enqueue_scripts', 'jr_alloy_quote_form_assets', 120 );

function jr_alloy_quote_form_assets() {
	if ( ! is_page( 1687 ) ) {
		return;
	}

	$theme_ver = function_exists( 'nectar_get_theme_version' ) ? nectar_get_theme_version() : wp_get_theme()->get( 'Version' );
	wp_enqueue_style( 'jr-alloy-form', get_stylesheet_directory_uri() . '/jr-alloy-form.css', array(), $theme_ver );
	wp_enqueue_script( 'jr-alloy-form', get_stylesheet_directory_uri() . '/jr-alloy-form.js', array(), $theme_ver, true );
}
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://domaintestwebsite.fun/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://domaintestwebsite.fun/wp-sitemap-posts-page-1.xml</loc></sitemap></sitemapindex>