unstructured

798dcc09 - fix: update OpenAIEmbeddingEncoder to use `langchain-openai` instead of `langchain-community` (#3433)

fix: update OpenAIEmbeddingEncoder to use `langchain-openai` instead of `langchain-community` (#3433) Closes https://github.com/Unstructured-IO/unstructured/issues/3378. ### Summary This PR aims to update `OpenAIEmbeddingEncoder` to use `OpenAIEmbeddings` from `langchain-openai` package instead of the deprecated version from `langchain-community`. This resolves the deprecation warning and ensures compatibility with future versions of langchain.