RankLLMRerank feature request to include AzureOpenAI

[libphy]

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Feature request

Please add AzureOpenAI's gpt options in class RankLLMRerank(BaseDocumentCompressor)

https://github.com/langchain-ai/langchain/blob/master/libs/community/langchain_community/document_compressors/rankllm_rerank.py

In the source code, the modeltype gpt only uses openai api, but there is no option for azure openai:

                elif model_enum == ModelType.GPT:
                    from rank_llm.rerank.rank_gpt import SafeOpenai
                    from rank_llm.rerank.reranker import Reranker

                    openai_api_key = get_from_dict_or_env(
                        values, "open_api_key", "OPENAI_API_KEY"
                    )

                    agent = SafeOpenai(
                        model=values["gpt_model"],
                        context_size=4096,
                        keys=openai_api_key,
                    )
                    values["client"] = Reranker(agent)

Motivation

As a private company we'd like to use more secure method such as azure openai instead of openai api because we send texts from proprietary documents. I found Langchain tools are much easy to use than azure native tools, so I tried to use langchain with azureopenai but it seems many langchain tools support openai but not azure openai yet.

Proposal (If applicable)

No response