update enumClass to enumFqcn

Author: IndraGunawan

components/config/definition.rst

@@ -186,14 +186,14 @@ The configuration can now be written like this::
         ->end()
     ;
 
-You can also use the ``enumClass()`` method to pass the FQCN of an enum
+You can also use the ``enumFqcn()`` method to pass the FQCN of an enum
 class to the node. This will automatically set the values of the node to
 the cases of the enum::
 
     $rootNode
         ->children()
             ->enumNode('delivery')
-                ->enumClass(Delivery::class)
+                ->enumFqcn(Delivery::class)
             ->end()
         ->end()
     ;
@@ -203,7 +203,7 @@ to one of the enum cases if possible.
 
 .. versionadded:: 7.3
 
-    The ``enumClass()`` method was introduced in Symfony 7.3.
+    The ``enumFqcn()`` method was introduced in Symfony 7.3.
 
 Array Nodes
 ~~~~~~~~~~~