Fix some deprecations

Author: javiereguiluz

config/packages/twig_component.yaml

@@ -0,0 +1,5 @@
+twig_component:
+    anonymous_template_directory: 'components/'
+    defaults:
+        # Namespace & directory for components
+        App\Twig\Components\: 'components/'

config/packages/validator.yaml

@@ -1,6 +1,6 @@
 framework:
     validation:
-        enable_annotations: true
+        enable_attributes: true
         email_validation_mode: html5
 
         # Enables validator auto-mapping support.