Merge branch '5.4' into 6.0

* 5.4: (27 commits)
  feat: add completion for DebugAutowiring search argument
  [Routing] Add support for aliasing routes
  [DependencyInjection] only allow `ReflectionNamedType` for `ServiceSubscriberTrait`
  Fix CS
  [Console] Open CompleteCommand for custom outputs
  [Intl] Update the ICU data to 70.1
  [Messenger] Add completion for failed messages commands.
  Fix tests
  Fixing missing full_stack variable that's needed by toolbar.html.twig
  [PropertyInfo] Bump phpstan/phpdoc-parser
  [Security] Backport type fixes
  [VarExporter] escape unicode chars involved in directionality
  [Framework] Add completion to debug:container
  [Messenger] Add completion to command messenger:consume
  [Intl] Update the ICU data to 70.1
  Fix more generic types
  Default access_decision_manager.strategy option with merge.
  Fix typos
  Update validators.ca.xlf
  Add missing Validator translations for Estonian
  ...

Signed-off-by: Alexander M. Turek <me@derrabus.de>

Author: derrabus

Iterator/DepthRangeFilterIterator.php

@@ -16,8 +16,8 @@
  *
  * @author Fabien Potencier <fabien@symfony.com>
  *
- * @template TKey
- * @template TValue
+ * @template-covariant TKey
+ * @template-covariant TValue
  *
  * @extends \FilterIterator<TKey, TValue>
  */