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

src/Service/Provider/ProviderHealthChecker.php

@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace App\Service\Provider;
+namespace GitContributionGraph\Service\Provider;
 
 use Symfony\Component\DependencyInjection\Attribute\AutowireIterator;