chore(namespace): rewirtten namspeace from app to GitContributionGraph.

tests/Unit/Service/Provider/GitHubProviderTest.php

@@ -2,9 +2,9 @@
 
 declare(strict_types=1);
 
-namespace App\Tests\Unit\Service\Provider;
+namespace GitContributionGraph\Tests\Unit\Service\Provider;
 
-use App\Service\Provider\GitHubProvider;
+use GitContributionGraph\Service\Provider\GitHubProvider;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;