fix(laravel): register ErrorProvider (#7018)

fixes #6998

Author: soyuka

Diff for: src/Laravel/ApiPlatformProvider.php

@@ -445,6 +445,8 @@ public function register(): void
             return new CollectionProvider($app->make(Pagination::class), new LinksHandler($app, $app->make(ResourceMetadataCollectionFactoryInterface::class)), $app->tagged(QueryExtensionInterface::class), new ServiceLocator($tagged));
         });
 
+        $this->app->tag([ItemProvider::class, CollectionProvider::class, ErrorProvider::class], ProviderInterface::class);
+
         $this->app->singleton(CallableProvider::class, function (Application $app) {
             $tagged = iterator_to_array($app->tagged(ProviderInterface::class));
 

Diff for: src/Laravel/Tests/JsonLdTest.php

@@ -330,6 +330,15 @@ public function testError(): void
         $this->assertArrayHasKey('trace', $content);
     }
 
+    public function testErrorNotFound(): void
+    {
+        $response = $this->get('/api/books/asd', ['accept' => 'application/ld+json']);
+        $response->assertStatus(404);
+        $content = $response->json();
+        $this->assertArrayHasKey('status', $content);
+        $this->assertEquals(404, $content['status']);
+    }
+
     public function testRelationWithGroups(): void
     {
         WithAccessorFactory::new()->create();