chore: upgrade phpunit to 12.5

tests/Email/EmailTextMailRenderingTest.php

@@ -44,9 +44,7 @@ class EmailTextMailRenderingTest extends KernelTestCase
         EmailTextKey::APPLICATION_FORM_FOLLOW_UP,
     ];
 
-    /**
-     * @dataProvider provideKeys
-     */
+    #[\PHPUnit\Framework\Attributes\DataProvider('provideKeys')]
     public function testTheMailRenders(EmailTextKey $key): void
     {
         self::bootKernel();
@@ -63,7 +61,7 @@ class EmailTextMailRenderingTest extends KernelTestCase
 
         // Renders the delivered wording: the test environment has no database, and the
         // defaults are what a mail falls back to anyway.
-        $repository = $this->createMock(EmailTextRepository::class);
+        $repository = $this->createStub(EmailTextRepository::class);
         $repository->method('findByKey')->willReturn(null);
 
         $text = (new EmailTextRenderer(
@@ -152,7 +150,7 @@ class EmailTextMailRenderingTest extends KernelTestCase
         self::bootKernel();
 
         $container = self::getContainer();
-        $repository = $this->createMock(EmailTextRepository::class);
+        $repository = $this->createStub(EmailTextRepository::class);
         $repository->method('findByKey')->willReturn(null);
 
         $renderer = new EmailTextRenderer(
@@ -173,7 +171,7 @@ class EmailTextMailRenderingTest extends KernelTestCase
         self::bootKernel();
 
         $container = self::getContainer();
-        $repository = $this->createMock(EmailTextRepository::class);
+        $repository = $this->createStub(EmailTextRepository::class);
         $repository->method('findByKey')->willReturn(null);
 
         $text = (new EmailTextRenderer(