[Doc][Python] Timestamp with tz loses its time zone after to_numpy #45644
Description
Describe the bug, including details regarding any error messages, version, and platform.
Timestamptz type loses its time zone after to_numpy.
Versions / Dependencies
In [44]: pa.__version__
Out[44]: '19.0.1'
Reproduction script
In [39]: import pyarrow as pa
In [40]: x = pa.array([1735689600, 1735689600, 1735689600], type=pa.timestamp("s", tz='UTC'))
In [41]: print(x.type)
timestamp[s, tz=UTC]
In [42]: y = x.to_numpy()
In [43]: print(y.dtype)
datetime64[s]
Component(s)
Python