Fix: Attempted to call an undefined method named "introspectSchema" o…

…f class "Doctrine\DBAL\Schema\PostgreSQLSchemaManager" (#143)

src/Provider/Doctrine/Persistence/Schema/SchemaManager.php

@@ -115,9 +115,8 @@ public function getUpdateAuditSchemaSql(): array
         $sqls = [];
         foreach ($repository as $name => $classes) {
             $storageConnection = $storageServices[$name]->getEntityManager()->getConnection();
-            $storageSchemaManager = $storageConnection->createSchemaManager();
-
-            $storageSchema = $storageSchemaManager->introspectSchema();
+            $storageSchemaManager = DoctrineHelper::createSchemaManager($storageConnection);
+            $storageSchema = DoctrineHelper::introspectSchema($storageSchemaManager);
             $fromSchema = clone $storageSchema;
 
             $processed = [];