use universal io

Author: stevensJourney

packages/powersync/lib/src/open_factory/abstract_powersync_open_factory.dart

@@ -1,5 +1,5 @@
 import 'dart:async';
-import 'dart:io';
+import 'package:universal_io/io.dart';
 import 'dart:math';
 
 import 'package:powersync/sqlite_async.dart';