Issue #3298923 by andypost, Berdir: Fix...

Issue #3298923 by andypost, Berdir: Fix ProtectedUserFieldConstraintValidatorTest to not trigger deprecations on PHP 8.2

core/modules/user/tests/src/Unit/Plugin/Validation/Constraint/ProtectedUserFieldConstraintValidatorTest.php

@@ -3,6 +3,7 @@
 namespace Drupal\Tests\user\Unit\Plugin\Validation\Constraint;
 
 use Drupal\Tests\UnitTestCase;
+use Drupal\user\Entity\User;
 use Drupal\user\Plugin\Validation\Constraint\ProtectedUserFieldConstraint;
 use Drupal\user\Plugin\Validation\Constraint\ProtectedUserFieldConstraintValidator;
 use Symfony\Component\Validator\Context\ExecutionContextInterface;
@@ -87,7 +88,7 @@ public function providerTestValidate() {
 
     // Case 3: Account flagged to skip protected user should be ignored.
     $field_definition = $this->createMock('Drupal\Core\Field\FieldDefinitionInterface');
-    $account = $this->createMock('Drupal\user\UserInterface');
+    $account = $this->createMock(User::class);
     $account->_skipProtectedUserFieldConstraint = TRUE;
     $items = $this->createMock('Drupal\Core\Field\FieldItemListInterface');
     $items->expects($this->once())