fix: update LangChain packages for HuggingFace Hub 0.33.1+ compatibility

[Warkstee]

Fix HuggingFace Hub Compatibility Issue

I run local embedding with Hugging Face TEI. I noticed that RAG API fails with 'InferenceClient' object has no attribute 'post' error when using HuggingFace embeddings with HuggingFace Hub version 0.33.1 or later.

Error Details

AttributeError: 'InferenceClient' object has no attribute 'post'
  File "/usr/local/lib/python3.10/site-packages/langchain_huggingface/embeddings/huggingface_endpoint.py", line 112, in embed_documents
    responses = self.client.post(

Root Cause

• HuggingFace Hub 0.33.1+ removed the post() method from InferenceClient
• langchain-huggingface==0.1.0 still used the deprecated post() method
• This created an incompatibility when the base image was updated with newer HuggingFace Hub versions

Solution

Updated LangChain packages to versions compatible with HuggingFace Hub 0.33.1+:

langchain 0.3.12 -> 0.3.26
langchain-community 0.3.12 -> 0.3.26
langchain-core 0.3.27 -> 0.3.66
langchain_text_splitters 0.3.3 -> 0.3.8
langchain-huggingface 0.1.0 -> 0.3.0

Testing

• RAG API builds successfully
• HuggingFace embeddings work correctly
• No breaking changes detected

[Warkstee]

Hi this really is a pretty straight forward fix. I'd kindly appreciate it if someone took a look, so that I can revert back to the main branch. Thank you!

[danny-avila]

Hi this really is a pretty straight forward fix. I'd kindly appreciate it if someone took a look, so that I can revert back to the main branch. Thank you!

can you also update requirements.lite.txt ?

Secondly, I might merge this after #170 since it has more extensive package updates.

[danny-avila]

Hi this really is a pretty straight forward fix. I'd kindly appreciate it if someone took a look, so that I can revert back to the main branch. Thank you!

can you resolve the merge conflicts @Warkstee ?