langchain[patch]: Fix create_retriever_tool missing on_retriever_end Document content (#16933)

- **Description:** In create_retriever_tool create_tool, fix
create_retriever_tool's missing Document content for on_retriever_end,
caused by create_retriever_tool's missing callbacks parameter,
  - **Twitter handle:** @CailinWang_

---------

Co-authored-by: root <root@Bluedot-AI>
Co-authored-by: Bagatur <baskaryan@gmail.com>

libs/langchain/langchain/tools/retriever.py

@@ -1,6 +1,9 @@
 from functools import partial
 from typing import Optional
 
+from langchain_core.callbacks.manager import (
+    Callbacks,
+)
 from langchain_core.prompts import BasePromptTemplate, PromptTemplate, format_document
 from langchain_core.pydantic_v1 import BaseModel, Field
 from langchain_core.retrievers import BaseRetriever
@@ -19,8 +22,9 @@ def _get_relevant_documents(
     retriever: BaseRetriever,
     document_prompt: BasePromptTemplate,
     document_separator: str,
+    callbacks: Callbacks = None,
 ) -> str:
-    docs = retriever.get_relevant_documents(query)
+    docs = retriever.get_relevant_documents(query, callbacks=callbacks)
     return document_separator.join(
         format_document(doc, document_prompt) for doc in docs
     )
@@ -31,8 +35,9 @@ async def _aget_relevant_documents(
     retriever: BaseRetriever,
     document_prompt: BasePromptTemplate,
     document_separator: str,
+    callbacks: Callbacks = None,
 ) -> str:
-    docs = await retriever.aget_relevant_documents(query)
+    docs = await retriever.aget_relevant_documents(query, callbacks=callbacks)
     return document_separator.join(
         format_document(doc, document_prompt) for doc in docs
     )