Format code.

src/redis/src/RedisConnection.php

@@ -99,6 +99,7 @@ class RedisConnection extends BaseConnection implements ConnectionInterface
         if ($this->dbChanged) {
             // Select the origin db after execute select.
             $this->select($this->config['db'] ?? 0);
+            $this->setDbChanged(false);
         }
         parent::release();
     }

src/redis/tests/RedisTest.php

@@ -19,7 +19,6 @@ use Hyperf\Redis\Pool\PoolFactory;
 use Hyperf\Redis\Pool\RedisPool;
 use Hyperf\Redis\Redis;
 use Hyperf\Utils\ApplicationContext;
-use Hyperf\Utils\Context;
 use HyperfTest\Redis\Stub\RedisPoolStub;
 use Mockery;
 use PHPUnit\Framework\TestCase;