fix: add sleep wrapper for delete_all_documents_async in Pinecone conftest

Pinecone's eventual consistency requires a delay after deletions before
counts reflect the change. The conftest already wrapped delete_documents_async
with a sleep, but missed delete_all_documents_async, causing a flaky test.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: julian-risch

integrations/pinecone/tests/conftest.py

@@ -94,8 +94,15 @@ async def delete_documents_and_wait_async(filters):
         await original_delete_documents(filters)
         await asyncio.sleep(DELETE_SLEEP_TIME_IN_SECONDS)
 
+    original_delete_all_documents = store.delete_all_documents_async
+
+    async def delete_all_documents_and_wait_async():
+        await original_delete_all_documents()
+        await asyncio.sleep(DELETE_SLEEP_TIME_IN_SECONDS)
+
     store.write_documents_async = write_documents_and_wait_async
     store.delete_documents_async = delete_documents_and_wait_async
+    store.delete_all_documents_async = delete_all_documents_and_wait_async
 
     yield store
     try: