Explicitely log a warning when the helper doesn't support cache

Closes #278 (closed)

arkindex_worker/worker/dataset.py

@@ -6,6 +6,7 @@ from collections.abc import Iterator
 from enum import Enum
 
 from arkindex_worker import logger
+from arkindex_worker.cache import unsupported_cache
 from arkindex_worker.models import Dataset, Element
 
 
@@ -68,6 +69,7 @@ class DatasetMixin:
 
         return map(format_result, list(results))
 
+    @unsupported_cache
     def update_dataset_state(self, dataset: Dataset, state: DatasetState) -> Dataset:
         """
         Partially updates a dataset state through the API.