fix nightly build with Series.to_numpy() on a Timedelta series (#500)

* fix nightly build with Series.to_numpy() on a Timedelta series

* just use Timedelta(0)

Author: Dr-Irv

tests/test_timefuncs.py

@@ -652,7 +652,7 @@ def test_types_to_numpy() -> None:
     td_s = pd.to_timedelta(pd.Series([10, 20]), "minutes")
     check(assert_type(td_s.to_numpy(), np.ndarray), np.ndarray)
     check(assert_type(td_s.to_numpy(dtype="int", copy=True), np.ndarray), np.ndarray)
-    check(assert_type(td_s.to_numpy(na_value=0), np.ndarray), np.ndarray)
+    check(assert_type(td_s.to_numpy(na_value=pd.Timedelta(0)), np.ndarray), np.ndarray)
 
 
 def test_to_timdelta_units() -> None: