Merge branch '6.3' into 6.4

* 6.3:
  [Cache] Fix tests
  [Mailer] [MailPace] Fix undefined array key in errors response
  [DependencyInjection] Allow casting env var processors to cast null
  [VarDumper] Add named arguments coverage of VarDumper's function
  [SecurityBundle] Use LogicException instead of Definition::addError()
  [PhpUnitBridge] Disable deduplication of Doctrine deprecations
  [Cache] Fix DBAL deprecations
  [Messenger] Add deprecation message for the "messenger.listener.stop_worker_on_sigterm_signal_listener" service
  Fix broken symlink tests Windows PHP 7.4+
  [SecurityBundle] Fix error message when using OIDC and web-token/jwt-core is not installed
  [Serializer] Fix discriminator map not working with `AbstractNormalizer::OBJECT_TO_POPULATE`
  add @throws to getPayload
  [FrameworkBundle] ease migration to symfony 6.3
  [VarDumper] Use documentElement instead of body for JS flag
  Bump Symfony version to 6.3.1
  Update VERSION for 6.3.0
  Update CHANGELOG for 6.3.0
  [Serializer] Fix discriminator map not working with `AbstractNormalizer::OBJECT_TO_POPULATE`

Author: nicolas-grekas

FrameworkBundle.php

@@ -98,7 +98,13 @@ public function boot()
         $_ENV['DOCTRINE_DEPRECATIONS'] = $_SERVER['DOCTRINE_DEPRECATIONS'] ??= 'trigger';
 
         $handler = ErrorHandler::register(null, false);
-        $this->container->get('debug.error_handler_configurator')->configure($handler);
+
+        // When upgrading an existing Symfony application from 6.2 to 6.3, and
+        // the cache is warmed up, the service is not available yet, so we need
+        // to check if it exists.
+        if ($this->container->has('debug.error_handler_configurator')) {
+            $this->container->get('debug.error_handler_configurator')->configure($handler);
+        }
 
         if ($this->container->getParameter('kernel.http_method_override')) {
             Request::enableHttpMethodParameterOverride();

Resources/config/messenger.php

@@ -209,6 +209,9 @@
             ->tag('kernel.event_subscriber')
             ->tag('monolog.logger', ['channel' => 'messenger'])
 
+        ->alias('messenger.listener.stop_worker_on_sigterm_signal_listener', 'messenger.listener.stop_worker_signals_listener')
+            ->deprecate('6.3', 'symfony/messenger', 'The "%alias_id%" service is deprecated, use "messenger.listener.stop_worker_signals_listener" instead.')
+
         ->set('messenger.listener.stop_worker_on_stop_exception_listener', StopWorkerOnCustomStopExceptionListener::class)
             ->tag('kernel.event_subscriber')