didn't know it has to have a time span

Author: nocollier

scripts/fetch_test_data.py

@@ -269,6 +269,7 @@ def process_sample_data_request(
             table_id="Ofx",
             variable_id=["volcello"],
             experiment_id=["historical"],
+            time_span=("2000", "2025"),
         ),
         remove_ensembles=True,
     ),