Merge branch '5.4' into 6.4

* 5.4: (21 commits)
  [SecurityBundle] Add `provider` XML attribute to the authenticators it’s missing from
  [DoctrineBridge] Test reset with a true manager
  Sync php-cs-fixer config file with 7.2
  [HttpClient] Fix parsing SSE
  [Notifier] Fix thread key in GoogleChat bridge
  [HttpKernel][Security] Fix accessing session for stateless request
  [Serializer] Fix `ObjectNormalizer` with property path
  test handling of special "value" constraint option
  [PhpUnitBridge] Add missing import
  [FrameworkBundle] Fix setting default context for certain normalizers
  [57251] Missing translations for Romanian (ro)
  [ErrorHandler] Fix rendered exception code highlighting on PHP 8.3
  [String] Fix #54611 pluralization of -on ending words + singularization of -a ending foreign words
  [Validator] [UniqueValidator] Use correct variable as parameter in (custom) error message
  [Messenger] Comply with Amazon SQS requirements for message body
  fix cssColor HSLA test dataProvider
  properly handle invalid data for false/true types
  chore: upgrade class doc
  add space in error message
  [Messenger] [Amqp] Handle AMQPConnectionException when publishing a message.
  ...

DeprecationErrorHandler.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Bridge\PhpUnit;
 
+use PHPUnit\Framework\TestCase;
 use PHPUnit\Framework\TestResult;
 use PHPUnit\Runner\ErrorHandler;
 use PHPUnit\Util\Error\Handler;