fix DatabasePatchV3.targetVersion

lib/database/db_patch/v3.dart

@@ -6,7 +6,7 @@ class DatabasePatchV3 extends BaseDatabasePatch {
   DatabasePatchV3(super.database);
 
   @override
-  int get targetVersion => 3;
+  int get targetVersion => 2;
 
   @override
   Future<void> executeTask() async {