Add sleep to make the calls seaparate

Author: Amnah199

integrations/azure_ai_search/tests/test_document_store.py

@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: Apache-2.0
 import os
 import random
+from time import sleep
 from datetime import datetime, timezone
 from unittest.mock import patch
 
@@ -294,7 +295,7 @@ def test_delete_all_documents(self, document_store: AzureAISearchDocumentStore):
         docs = [Document(content="first doc"), Document(content="second doc")]
         document_store.write_documents(docs)
         assert document_store.count_documents() == 2
-
+        sleep(5)
         document_store.delete_all_documents()
         assert document_store.count_documents() == 0