Running Trigger WCA Install command produces fatal error

[ilyasfoo]

Describe the bug

When running Trigger WCA Install on WC 6.5, it produces fatal error:

[27-Apr-2022 07:24:23 UTC] PHP Fatal error:  Uncaught Error: Class 'Automattic\WooCommerce\Admin\Install' not found in /var/www/html/wp-content/plugins/woocommerce-admin-test-helper/api/tools/trigger-wca-install.php:8
Stack trace:
#0 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(1141): tools_trigger_wca_install(Object(WP_REST_Request))
#1 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(988): WP_REST_Server->respond_to_request(Object(WP_REST_Request), '/wc-admin-test-...', Array, NULL)
#2 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(414): WP_REST_Server->dispatch(Object(WP_REST_Request))
#3 /var/www/html/wp-includes/rest-api.php(386): WP_REST_Server->serve_request('/wc-admin-test-...')
#4 /var/www/html/wp-includes/class-wp-hook.php(307): rest_api_loaded(Object(WP))
#5 /var/www/html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array)
#6 /var/www/html/wp-includes/plugin.php(522): WP_Hook->do_action(Array)
#7 /var/www/html/wp-includes/class-wp.php(396): do_action_ref_array('parse_request', Array)
 in /var/www/html/wp-content/plugins/woocommerce-admin-test-helper/api/tools/trigger-wca-install.php on line 8

To Reproduce

1. Use WC6.5 or later
2. Run Trigger WCA Install
3. Observe fatal error