Merge branch '5.4' into 6.0

* 5.4:
  [WebProfilerBundle] Tweak the colors of the security panel
  Add a setter on DateTimeNormalizer to change the default context at runtime
  [FrameworkBundle] Fix default PHP attributes support in validation and serializer configuration when doctrine/annotations is not installed with PHP 8

Author: nicolas-grekas

DependencyInjection/Configuration.php

@@ -856,7 +856,7 @@ private function addValidationSection(ArrayNodeDefinition $rootNode, callable $e
                     ->{$enableIfStandalone('symfony/validator', Validation::class)}()
                     ->children()
                         ->scalarNode('cache')->end()
-                        ->booleanNode('enable_annotations')->{!class_exists(FullStack::class) && $willBeAvailable('doctrine/annotations', Annotation::class, 'symfony/validator') ? 'defaultTrue' : 'defaultFalse'}()->end()
+                        ->booleanNode('enable_annotations')->{!class_exists(FullStack::class) ? 'defaultTrue' : 'defaultFalse'}()->end()
                         ->arrayNode('static_method')
                             ->defaultValue(['loadValidatorMetadata'])
                             ->prototype('scalar')->end()
@@ -965,7 +965,7 @@ private function addSerializerSection(ArrayNodeDefinition $rootNode, callable $e
                     ->info('serializer configuration')
                     ->{$enableIfStandalone('symfony/serializer', Serializer::class)}()
                     ->children()
-                        ->booleanNode('enable_annotations')->{!class_exists(FullStack::class) && $willBeAvailable('doctrine/annotations', Annotation::class, 'symfony/serializer') ? 'defaultTrue' : 'defaultFalse'}()->end()
+                        ->booleanNode('enable_annotations')->{!class_exists(FullStack::class) ? 'defaultTrue' : 'defaultFalse'}()->end()
                         ->scalarNode('name_converter')->end()
                         ->scalarNode('circular_reference_handler')->end()
                         ->scalarNode('max_depth_handler')->end()