document indexing not bound to a Session (#21015)

Co-authored-by: xuhaixing <xuhaixing@itiger.com>

api/tasks/retry_document_indexing_task.py

@@ -30,11 +30,11 @@ def retry_document_indexing_task(dataset_id: str, document_ids: list[str]):
         logging.info(click.style("Dataset not found: {}".format(dataset_id), fg="red"))
         db.session.close()
         return
-
+    tenant_id = dataset.tenant_id
     for document_id in document_ids:
         retry_indexing_cache_key = "document_{}_is_retried".format(document_id)
         # check document limit
-        features = FeatureService.get_features(dataset.tenant_id)
+        features = FeatureService.get_features(tenant_id)
         try:
             if features.billing.enabled:
                 vector_space = features.vector_space