`power(decimal, -integer)` is incorrect

[neilconway]

Describe the bug

power with a decimal base and negative integer exponent truncates the result incorrectly.

To Reproduce

DataFusion CLI v53.1.0
> select power(CAST(2 AS DECIMAL(10,0)), -3);
+---------------------------+
| power(Int64(2),Int64(-3)) |
+---------------------------+
| 0                         |
+---------------------------+
1 row(s) fetched.
Elapsed 0.110 seconds.

Expected behavior

This query should return 0.125, which is what Postgres and DuckDB do.

Additional context

No response

[neilconway]

take