Update Notice to include the new packages

NOTICE

@@ -12,8 +12,22 @@ googleapis/google-auth-library-python - https://github.com/googleapis/google-aut
 Copyright google-auth-library-python authors
 License - https://github.com/googleapis/google-auth-library-python/blob/main/LICENSE
 
+openai/openai-python - https://github.com/openai/openai-python
+Copyright 2024 OpenAI
+License - https://github.com/openai/openai-python/blob/main/LICENSE
+
 This software contains code from the following open source projects, licensed under the BSD (3-clause) license.
 
 x/oauth2 - https://cs.opensource.google/go/x/oauth2/+/master:oauth2.go
 Copyright 2014 The Go Authors. All rights reserved.
 License - https://cs.opensource.google/go/x/oauth2/+/master:LICENSE
+
+encode/httpx - https://github.com/encode/httpx
+Copyright 2019, Encode OSS Ltd
+License - https://github.com/encode/httpx/blob/master/LICENSE.md
+
+This software contains code from the following open source projects, licensed under the MIT license:
+
+langchain-ai/langchain - https://github.com/langchain-ai/langchain/blob/master/libs/partners/openai
+Copyright 2023 LangChain, Inc.
+License - https://github.com/langchain-ai/langchain/blob/master/libs/partners/openai/LICENSE