typo fix in object_based handler config

DependencyInjection/JMSSerializerExtension.php

@@ -53,10 +53,10 @@ class JMSSerializerExtension extends Extension
 
         // object based custom handler
         if ($config['handlers']['object_based']['serialization']) {
-            $container->getDefinition('jms_serializer.object_based_custom_handler')->addTag('jms_serialization.serialization_handler');
+            $container->getDefinition('jms_serializer.object_based_custom_handler')->addTag('jms_serializer.serialization_handler');
         }
         if ($config['handlers']['object_based']['deserialization']) {
-            $container->getDefinition('jms_serializer.object_based_custom_handler')->addTag('jms_serialization.deserialization_handler');
+            $container->getDefinition('jms_serializer.object_based_custom_handler')->addTag('jms_serializer.deserialization_handler');
         }
 
         // datetime handler