Docs: Correct parameter type for `$item` in `WP_REST_Terms_Controller::prepare_item_for_response()`.

Props diddledan, TimothyBlynJacobs.
Fixes #48616.

git-svn-id: https://develop.svn.wordpress.org/trunk@46731 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php

@@ -718,7 +718,7 @@ class WP_REST_Terms_Controller extends WP_REST_Controller {
 	 *
 	 * @since 4.7.0
 	 *
-	 * @param obj             $item    Term object.
+	 * @param WP_Term         $item    Term object.
 	 * @param WP_REST_Request $request Request object.
 	 * @return WP_REST_Response $response Response object.
 	 */