magento-test/app/code/Magento/CardinalCommerce/etc/frontend/di.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Checkout\Model\CompositeConfigProvider">
        <arguments>
            <argument name="configProviders" xsi:type="array">
                <item name="cardinal_config_provider" xsi:type="object">
                    Magento\CardinalCommerce\Model\Checkout\ConfigProvider
                </item>
            </argument>
        </arguments>
    </type>
</config>