[I] [Python] Timestamptz type loses its time zone after map transforming. [arrow]

[via GitHub]

sharkdtu opened a new issue, #45644:
URL: https://github.com/apache/arrow/issues/45644

   ### Describe the bug, including details regarding any error messages, 
version, and platform.
   
   Timestamptz type loses its time zone after map transforming.
   
   ## 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


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