PyArrow pairwise_diff returns incorrectly signed result

### Describe the bug, including details regarding any error messages, version, and platform.

```
Python 3.11.5 (main, Sep 19 2023, 13:23:14) [Clang 14.0.3 (clang-1403.0.22.14.1)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyarrow as pa
>>> import pyarrow.compute as pc
>>> a = pa.array([0, 1, 0], type=pa.uint32())
>>> a

[
0,
1,
0
]

>>> pc.pairwise_diff(a)

[
null,
1,
4294967295
]
>>> pa.__version__
'13.0.0'
```

I would have expected the result to be a signed 32 (or 64?) bit array.

### Component(s)

Python