Try to fix unit test

Author: gziolo

includes/bootstrap.php

@@ -61,7 +61,7 @@
 
 	// Initialize REST API routes when WordPress is available.
 	if ( function_exists( 'add_action' ) ) {
-		add_action( 'rest_api_init', array( 'WP_REST_Abilities_Init', 'register_routes' ) );
+		add_action( 'rest_api_init', array( 'WP_REST_Abilities_Init', 'register_routes' ), 11 );
 	}
 }
 

includes/rest-api/class-wp-rest-abilities-init.php

@@ -20,8 +20,11 @@ class WP_REST_Abilities_Init {
 	 * Registers the REST API routes for abilities.
 	 *
 	 * @since 0.1.0
+	 *
+	 * @param WP_REST_Server|null $rest_server Optional. The REST server to register routes with. Default null, which
+	 *                                         will use the main REST server instance.
 	 */
-	public static function register_routes( $rest_server ): void {
+	public static function register_routes( $rest_server = null ): void {
 		if ( ! $rest_server instanceof WP_REST_Server ) {
 			$rest_server = rest_get_server();
 		}