[VL] Incorrect result type of nested decimal arithmetic expressions

### Backend

VL (Velox)

### Bug description

The SQL as follows will produce wrong result:
```SQL
select col0 / (col1 + 0.00001) from table;
```
where col0 and col1 is decimal(20, 0).
The values of col0 and col1 are 25 and 72. Gluten returns 3.4722217399692027821 and spark returns 0.3472221739969202782.
The result type needs to be `decimal(38, 19)`. But during calculation, the actual result type is `decimal(38, 20)`:

The reason is that the type of the subexpression `col1 + 0.00001` will be rescaled to `decimal(27, 5)`:

But we don't notice it when we rescale the topmost expression:

### Spark version

None

### Spark configurations

_No response_

### System information

_No response_

### Relevant logs

_No response_

Reproduce the SQL query `select col0 / (col1 + 0.00001) from table` with decimal(20, 0) operands in the Velox backend and inspect the inferred types of the nested and top-level expressions. Compare Gluten's result and decimal(38, 20) type with Spark's expected result and decimal(38, 19) type; done means nested decimal arithmetic produces the correct result type and value.

Written by the indexing model from the issue text.