Merge branch '6.0' into 6.1

* 6.0:
  Fix merge
  [Mime] Throw exception when body in Email attach method is not ok
  [VarDumper][VarExporter] Deal with DatePeriod->include_end_date on PHP 8.2
  [Cache] Throw when "redis_sentinel" is used with a non-Predis "class" option
  fix merge
  Bootstrap 4 fieldset for row errors
  [Form] Fix same choice loader with different choice values
  [Filesystem] Safeguard (sym)link calls
  Fix dumping extension config without bundle
  [HttpClient] Honor "max_duration" when replacing requests with async decorators
  [HttpClient] Add missing HttpOptions::setMaxDuration()
  [HttpKernel] Fix missing null type in `ErrorListener::__construct()`
  [HttpFoundation] [Session] Overwrite invalid session id

Author: nicolas-grekas

EventListener/ErrorListener.php

@@ -35,7 +35,7 @@ class ErrorListener implements EventSubscriberInterface
     protected $debug;
     protected $exceptionsMapping;
 
-    public function __construct(string|object|array $controller, LoggerInterface $logger = null, bool $debug = false, array $exceptionsMapping = [])
+    public function __construct(string|object|array|null $controller, LoggerInterface $logger = null, bool $debug = false, array $exceptionsMapping = [])
     {
         $this->controller = $controller;
         $this->logger = $logger;