Update 2 more pydantic imports (#9203)

Update two more pydantic imports to use v1 explicitly

libs/langchain/langchain/llms/deepsparse.py

@@ -1,7 +1,7 @@
 # flake8: noqa
 from typing import Any, Dict, Optional, List
 
-from pydantic import root_validator
+from pydantic_v1 import root_validator
 
 from langchain.callbacks.manager import CallbackManagerForLLMRun
 from langchain.llms.base import LLM

libs/langchain/langchain/utilities/alpha_vantage.py

@@ -2,7 +2,7 @@
 from typing import Any, Dict, List, Optional
 
 import requests
-from pydantic import Extra, root_validator
+from pydantic_v1 import Extra, root_validator
 
 from langchain.tools.base import BaseModel
 from langchain.utils import get_from_dict_or_env