message: Release stmt_ref when Statment is reused
diff: @@ -80,7 +80,12 @@ public class DuckDBPreparedStatement implements PreparedStatement {
  throw new SQLException("sql query parameter cannot be null");
  }
  + // In case the statement is reused, release old one first
  + if (stmt_ref != null) {
  + DuckDBNative.duckdb_jdbc_release(stmt_ref);
  stmt_ref = null;
  + }
  +
  meta = null;
  params = null;
  