Fix styling

Author: ziming

src/UsedMemoryCheck.php

@@ -10,7 +10,6 @@
 
 class UsedMemoryCheck extends Check
 {
-
     protected int $warningThreshold = 70;
 
     protected int $errorThreshold = 90;

tests/MemoryUsageTest.php

@@ -1,6 +1,6 @@
 <?php
 
-declare (strict_types=1);
+declare(strict_types=1);
 
 use Ziming\LaravelMemoryHealthCheck\UsedMemoryCheck;
 

tests/TestCase.php

@@ -4,13 +4,11 @@
 
 namespace Ziming\LaravelMemoryHealthCheck\Tests;
 
-use Illuminate\Database\Eloquent\Factories\Factory;
 use Orchestra\Testbench\TestCase as Orchestra;
 use Ziming\LaravelMemoryHealthCheck\LaravelMemoryHealthCheckServiceProvider;
 
 class TestCase extends Orchestra
 {
-
     protected function getPackageProviders($app): array
     {
         return [