fix: add forgotten changes

Endpoint/Controllers/Configuration/SetupController.cs

@@ -90,7 +90,8 @@ public class SetupController(
     {
         try
         {
-            using var connection = new TConnection();
+            using (var connection = new TConnection())
+            {
                 connection.ConnectionString = connectionString;
                 connection.Open();
                 connection.Close();