fix(dataproducer): Adds missed traits after refactoring in order to have compatibility. (#1308)

Author: akhomy

src/Plugin/GraphQL/DataProducer/DataProducerPluginBase.php

@@ -4,16 +4,22 @@
 
 use Drupal\Component\Plugin\Exception\ContextException;
 use Drupal\Component\Plugin\PluginBase;
+use Drupal\Core\DependencyInjection\DependencySerializationTrait;
 use Drupal\graphql\GraphQL\Execution\FieldContext;
 use Drupal\graphql\Plugin\DataProducerPluginInterface;
 use Drupal\Core\Plugin\ContextAwarePluginTrait;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\Core\TypedData\TypedDataTrait;
 
 /**
  * Base class for data producers that resolve fields for queries or mutations.
  */
 abstract class DataProducerPluginBase extends PluginBase implements DataProducerPluginInterface {
   use DataProducerPluginCachingTrait;
   use ContextAwarePluginTrait;
+  use TypedDataTrait;
+  use StringTranslationTrait;
+  use DependencySerializationTrait;
 
   /**
    * {@inheritdoc}