Optimize injective functions with several arguments inside of Uniq functions

Right now CH removes injective functions from `uniq*` arguments only if they have exactly 1 argument.
We can also optimize it when the injective function has several arguments.

**Example**

```sql
SELECT uniq(number + 1) FROM numbers(3);
```

Can be optimized to:

```sql
SELECT uniq(number) FROM numbers(3);
```