Bugfix: Added numpy datetime as valid type for run_date

src/rc_gpfs/process/factory.py

@@ -48,7 +48,7 @@ class Aggregator:
         self,
         delta_vals: int | List[int],
         delta_unit: Literal['D','W','M','Y'],
-        run_date: pd.Timestamp
+        run_date: pd.Timestamp | np.datetime64
     ) -> List[int | pd.Timestamp]:
         deltas = pd.Series([as_timedelta(c,delta_unit) for c in delta_vals])
         cutoffs = pd.to_datetime(run_date - deltas)