feat: upgrade phpunit to 12.5

tests/Service/AccommodationBookingLinkSignerTest.php

@@ -178,7 +178,7 @@ class AccommodationBookingLinkSignerTest extends TestCase
 
     private function createSigner(): AccommodationBookingLinkSigner
     {
-        $urlGenerator = $this->createMock(UrlGeneratorInterface::class);
+        $urlGenerator = $this->createStub(UrlGeneratorInterface::class);
         $urlGenerator
             ->method('generate')
             ->willReturnCallback(static fn (string $name, array $parameters) => sprintf(