Add missing parent::setUp() to tests

tests/phpunit/CRM/Stripe/BaseTest.php

@@ -101,6 +101,7 @@ abstract class CRM_Stripe_BaseTest extends CiviUnitTestCase implements HeadlessI
   }
 
   public function setUp(): void {
+    parent::setUp();
     // Create Stripe Checkout processor
     $this->setOrCreateStripeCheckoutPaymentProcessor();
     // Create Stripe processor