ARROW-14685: [Python] test case automatically detects byteorder of numpy object
ARROW-14685: [Python] test case automatically detects byteorder of numpy object

This PR fixes the following test failures

```
FAILED pyarrow/tests/test_pandas.py::test_timestamp_as_object_out_of_range - AssertionError: assert (dtype('O'), dtype('>M8[ns]')) == (dtype('O'), dtype('<M8[ns]'))
```

Closes #11686 from kiszk/ARROW-14685

Authored-by: Kazuaki Ishizaki <409019bab0e07036ad6abfa289bcfe098eb16317@jp.ibm.com>
Signed-off-by: Joris Van den Bossche <36c737f86d71d8ee1ddeb1e5c83102ee5de8f97c@gmail.com>

icexelloss/arrow,apache/arrow,laurentgo/arrow,laurentgo/arrow,laurentgo/arrow,apache/arrow,apache/arrow,wesm/arrow,icexelloss/arrow,apache/arrow,kou/arrow,icexelloss/arrow,icexelloss/arrow,icexelloss/arrow,laurentgo/arrow,wesm/arrow,kou/arrow,wesm/arrow,kou/arrow,apache/arrow,laurentgo/arrow,wesm/arrow,icexelloss/arrow,kou/arrow,wesm/arrow,kou/arrow,laurentgo/arrow,laurentgo/arrow,wesm/arrow,wesm/arrow,kou/arrow,apache/arrow,kou/arrow,laurentgo/arrow,kou/arrow,wesm/arrow,icexelloss/arrow,apache/arrow,icexelloss/arrow,icexelloss/arrow,apache/arrow,wesm/arrow,wesm/arrow,kou/arrow,apache/arrow,apache/arrow,kou/arrow,icexelloss/arrow,laurentgo/arrow,icexelloss/arrow,kou/arrow,kou/arrow,apache/arrow,laurentgo/arrow,apache/arrow,wesm/arrow,kou/arrow,icexelloss/arrow,wesm/arrow,icexelloss/arrow,apache/arrow,kou/arrow,icexelloss/arrow,laurentgo/arrow,laurentgo/arrow,wesm/arrow,laurentgo/arrow,laurentgo/arrow,laurentgo/arrow,apache/arrow,wesm/arrow