GH-36498: [Python][CI] Hypothesis nightly test fails with pytz.except…

…ions.UnknownTimeZoneError: 'Factory' (#36508)

### What changes are included in this PR?

Skip the test if the timezone is `zoneinfo.ZoneInfo(key='Factory')`, because we don't support roundtripping such a timezone.

* Closes: #36498

Authored-by: AlenkaF <frim.alenka@gmail.com>
Signed-off-by: Joris Van den Bossche <jorisvandenbossche@gmail.com>

python/pyarrow/tests/test_pandas.py

@@ -1070,7 +1070,7 @@ def test_python_datetime_with_pytz_tzinfo(self):
  @h.given(st.none() | past.timezones)
  @h.settings(deadline=None)
  def test_python_datetime_with_pytz_timezone(self, tz):
- if str(tz) == "build/etc/localtime":
+ if str(tz) in ["build/etc/localtime", "Factory"]:
  pytest.skip("Localtime timezone not supported")
  values = [datetime(2018, 1, 1, 12, 23, 45, tzinfo=tz)]
  df = pd.DataFrame({'datetime': values})