message: include public in cs generation
diff: @@ -322,7 +322,7 @@ fn test_extend_xor() {
  next_row += 1;
  }
  - let cs = ConstraintSystem::create(gates).build().unwrap();
  + let cs = ConstraintSystem::create(gates).public(2).build().unwrap();
  let mut witness: [_; COLUMNS] = array::from_fn(|_col| vec![Fp::zero(); 2]);
  witness[0][0] = input1;
  