Update OpenAPI spec and regenerate libs (#1301)

Update OpenAPI spec and regenerate libs

Author: svix-lucho

csharp/Svix/Integration.cs

@@ -205,7 +205,8 @@ public ListResponseIntegrationOut List(string appId, ListOptions options = null,
                 var lResult = _integrationApi.V1IntegrationList(
                     appId,
                     options?.Limit,
-                    options?.Iterator);
+                    options?.Iterator,
+                    options?.Order);
 
                 return lResult;
             }
@@ -229,6 +230,7 @@ public async Task<ListResponseIntegrationOut> ListAsync(string appId, ListOption
                     appId,
                     options?.Limit,
                     options?.Iterator,
+                    options?.Order,
                     cancellationToken);
 
                 return lResult;