Merge branch '6.4' into 7.0

* 6.4:
  [Workflow] Deprecate `GuardEvent::getContext()` method
  Fix Serializer context configuration in YAML

Author: javiereguiluz

serializer.rst

@@ -185,8 +185,8 @@ You can also specify the context on a per-property basis::
         App\Model\Person:
             attributes:
                 createdAt:
-                    context:
-                        datetime_format: 'Y-m-d'
+                    contexts:
+                        - { context: { datetime_format: 'Y-m-d' } }
 
     .. code-block:: xml
 

workflow.rst

@@ -466,6 +466,12 @@ The context is accessible in all events except for the ``workflow.guard`` events
     // in an event listener (workflow.guard events)
     $context = $event->getContext(); // returns ['context']
 
+.. deprecated:: 6.4
+
+    Gathering events context is deprecated since Symfony 6.4 and the
+    :method:`Symfony\\Component\\Workflow\\Event::getContext` method will be
+    removed in Symfony 7.0.
+
 .. note::
 
     The leaving and entering events are triggered even for transitions that stay