[rag] update toml again (#3138)

# Description

Please add an informative description that covers that changes made by
the pull request and link all relevant issues.

# All Promptflow Contribution checklist:
- [x] **The pull request does not introduce [breaking changes].**
- [x] **CHANGELOG is updated for new features, bug fixes or other
significant changes.**
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## General Guidelines and Best Practices
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- [ ] There are a small number of commits, each of which have an
informative message. This means that previously merged commits do not
appear in the history of the PR. For more information on cleaning up the
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### Testing Guidelines
- [ ] Pull request includes test coverage for the included changes.

src/promptflow-rag/pyproject.toml

@@ -33,8 +33,10 @@ packages = [
 # dependencies
 [tool.poetry.dependencies]
 python = "<4.0,>=3.8"
-azureml-rag[cognitive_search,document_parsing] = ">= 0.2.30.2"
-openai = "*"
+azureml-rag = ">= 0.2.30.2"
+azure-search-documents = ">=11.4.0"
+langchain = ">=0.0.236,<=0.1.15"
+langchain-community = "<=0.0.33"
 
 [tool.poetry.group.dev.dependencies]
 pre-commit = "*"