Fix dashscope qwen assistant api Error response problem, extract tool_calls info from ChatMessage kwargs to top level.

[dalei-wang]

The original chat_message_to_dashscope_messages method transform llama ChatMessage to DashScope Message Dict only contains role and content key, but qwen assistant api with function call need "tool_calls" before tool role message, otherwise it will return an error like this:
<400> InternalError.Algo.InvalidParameter: messages with role "tool" must be a response to a preceeding message with "tool_calls".

Description

Modify chat_message_to_dashscope_messages method. When the message is in assistant or tool role. Extracting information such as tool_calls/tools from the JSON structure in ChatMessage's kwargs to the top level

Fixes # (issue)

New Package?

Did I fill in the tool.llamahub section in the pyproject.toml and provide a detailed README.md for my new integration or package?

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Did I bump the version in the pyproject.toml file of the package I am updating? (Except for the llama-index-core package)

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Type of Change

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