BUG: `full_like` and `full` accept array `fill_value`

```python
In [1]: import array_api_strict as xp

In [2]: xp.full_like(xp.asarray(0), xp.asarray(1))
Out[2]: Array(1, dtype=array_api_strict.int64)
```

[Spec](https://data-apis.org/array-api/latest/API_specification/generated/array_api.full_like.html):

```
fill_value (Union[bool, int, float, complex]) – fill value.
```