Merge pull request #14713 from cakephp/4.next-docblocks

Fix up docblock.

src/Auth/BasicAuthenticate.php

@@ -89,7 +89,7 @@ class BasicAuthenticate extends BaseAuthenticate
      *
      * @param \Cake\Http\ServerRequest $request A request object.
      * @param \Cake\Http\Response $response A response object.
-     * @return void
+     * @return \Cake\Http\Response|null|void
      * @throws \Cake\Http\Exception\UnauthorizedException
      */
     public function unauthenticated(ServerRequest $request, Response $response)