Merge branch '7.4' into 8.0

* 7.4:
  [HttpKernel] Add `#[IsSignatureValid]` attribute
  Introduce `twig-cs-fixer`
  [HttpFoundation] Handle error when directory is a file
  [FrameworkBundle] Add KernelBrowser::getSession()
  [Serializer] Allows to instantiate property when creating a `NotNormalizableValueException`
  do not support sensitive option entries
  [HttpKernel] Refine ControllerEvent::getAttributes() and ControllerArgumentsEvent::getAttributes() return types
  do not try to modify the result of a PhptTestCase
  update the PHPUnit configuration
  [Lock] Fix package name for DynamoDB
  [Lock] DynamoDB store
  [Console][QuestionHelper] add optional timeout for human interaction
  [Messenger] Introduce `DefaultStampsProviderInterface `
  [TwigBridge] Call form_label_content block inside button_widget block
  [Config] Add argument $singular to NodeBuilder::arrayNode() to decouple plurals/singulars from XML
  chore(http-foundation): add better type information using phpdoc

Author: nicolas-grekas

Resources/views/Profiler/dump.html.twig

@@ -32,7 +32,7 @@
             {% endfor %}
         {% endset %}
 
-        {{ include('@WebProfiler/Profiler/toolbar_item.html.twig', { 'link': true }) }}
+        {{ include('@WebProfiler/Profiler/toolbar_item.html.twig', {link: true}) }}
     {% endif %}
 {% endblock %}