Use Hyperf\Context\ApplicationContext instead of Hyperf\Utils\ApplicationContext. (#5621)

Author: limingxinleo

tests/ClientTest.php

@@ -12,6 +12,7 @@
 namespace HyperfTest\Testing;
 
 use Hyperf\Config\Config;
+use Hyperf\Context\ApplicationContext;
 use Hyperf\Contract\ConfigInterface;
 use Hyperf\Contract\NormalizerInterface;
 use Hyperf\Di\ClosureDefinitionCollectorInterface;
@@ -27,7 +28,6 @@
 use Hyperf\Server\Event;
 use Hyperf\Server\Server;
 use Hyperf\Testing\Client;
-use Hyperf\Utils\ApplicationContext;
 use Hyperf\Utils\Codec\Json;
 use Hyperf\Utils\Coroutine;
 use Hyperf\Utils\Filesystem\Filesystem;