TST: add missing assert in test_apply_datetimetz in test_series_apply.py

[yuanx749]

I think assert is missing before result == "Asia/Tokyo". Came across this when checking some Pylance warnings.

pandas/pandas/tests/apply/test_series_apply.py

Lines 211 to 216 in fe17818

	result = s.apply(f, by_row=by_row)
	if by_row:
	exp = Series(["Asia/Tokyo"] * 25, name="XX")
	tm.assert_series_equal(result, exp)
	else:
	result == "Asia/Tokyo"

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[MarcoGorelli]

nice spot, thanks @yuanx749