feat: rename finalize methods to complete for consistency in purchase processing

tests/Feature/Integration/TelepagosWebhookTest.php

@@ -152,7 +152,7 @@ class TelepagosWebhookTest extends TestCase
             'payment_method' => 'transfer',
         ]);
 
-        $checkoutService->finalizePurchase($purchase);
+        $checkoutService->completePurchase($purchase);
 
         return $purchase->fresh();
     }

tests/Feature/Purchase/StorePurchaseTest.php

@@ -148,7 +148,7 @@ class StorePurchaseTest extends TestCase
             ]);
 
         $this->actingAs($user, 'sanctum')
-            ->postJson("/api/tenants/sonder/compras/{$purchaseId}/finalize")
+            ->postJson("/api/tenants/sonder/compras/{$purchaseId}/complete")
             ->assertOk()
             ->assertJsonPath('data.status', Purchase::STATUS_PENDING_PAYMENT);