Merge pull request duckdb/duckdb#13346 from nickgerrets/hyperbolic_trigonometry

#13346 added `acosh` along with other hyperbolic trigonometric
functions. The current `acosh` example uses a value that falls outside
of the function's domain. In Postgres, this returns and error, while in
DuckDB it returns a NaN:

```sql
postgres=# select acosh(0.5);
ERROR:  input is out of range
```

```sql
D select acosh(0.5);
┌────────────┐
│ acosh(0.5) │
│   double   │
├────────────┤
│        nan │
└────────────┘
```

This PR changes the example.