Merge branch '5.3' into 5.4

* 5.3:
  Update workflow docs for $context  in GuardEvent

Author: javiereguiluz

workflow.rst

@@ -388,7 +388,8 @@ order:
 
     .. versionadded:: 5.2
 
-        In Symfony 5.2, the context is accessible in all events::
+        In Symfony 5.2, the context is customizable for all events except for
+        ``workflow.guard`` events, which will not receive the custom ``$context``::
 
             // $context must be an array
             $context = ['context_key' => 'context_value'];