Add missing DataPersister configuration

src/Resources/config/services.yaml

@@ -8,6 +8,11 @@ services:
     tags: ['controller.service_arguments']
     autowire: true
 
+  Dbp\Relay\TemplateBundle\DataPersister\:
+    resource: '../../DataPersister'
+    autowire: true
+    autoconfigure: true
+
   Dbp\Relay\TemplateBundle\DataProvider\PlaceCollectionDataProvider:
     tags: [{ name: 'api_platform.collection_data_provider'}]
     autowire: true
@@ -25,4 +30,4 @@ services:
     autoconfigure: true
 
   Dbp\Relay\TemplateBundle\Service\PlaceProviderInterface:
-    '@Dbp\Relay\TemplateBundle\Service\ExternalApi'
\ No newline at end of file
+    '@Dbp\Relay\TemplateBundle\Service\ExternalApi'