Fix preCommit version script

Author: mugikhan

melos.yaml

@@ -18,7 +18,7 @@ command:
       # Automatically update libraryVersion:
       preCommit: |
         dart run tool/update_version.dart
-        git add packages/powersync/lib/src/version.dart
+        git add packages/powersync_core/lib/src/version.dart
   publish:
     hooks:
       pre: dart ./scripts/download_core_binary_demos.dart # Download latest core binaries when publishing

tool/update_version.dart

@@ -7,6 +7,6 @@ void main() {
   final yaml = loadYaml(pubspecContent);
   final version = yaml['version'];
 
-  final versionFile = File('packages/powersync/lib/src/version.dart');
+  final versionFile = File('packages/powersync_core/lib/src/version.dart');
   versionFile.writeAsStringSync("const String libraryVersion = '$version';\n");
 }