Fix survey reader back flow

src/Repository/SurveyAnswerRepository.php

@@ -6,6 +6,7 @@ namespace Mummert\SurveyBundle\Repository;
 
 use Doctrine\DBAL\ArrayParameterType;
 use Doctrine\DBAL\Connection;
+use Doctrine\DBAL\ParameterType;
 
 final class SurveyAnswerRepository
 {
@@ -92,7 +93,7 @@ final class SurveyAnswerRepository
         $this->connection->executeStatement(
             'DELETE FROM tl_survey_answer WHERE submission = ? AND question NOT IN (?)',
             [$submissionId, array_values(array_unique(array_map('intval', $questionIds)))],
-            [\PDO::PARAM_INT, ArrayParameterType::INTEGER],
+            [ParameterType::INTEGER, ArrayParameterType::INTEGER],
         );
     }