### Check for existing issues

- [x] I have searched the existing issues and checked that my issue is not a duplicate.

### What happened?

A bug happened!

When passing both cache_control and tool_choice together in a Gemini request, the following error is returned: "Tool config, tools and system instruction should not be set in the request when using cached content."

### Steps to Reproduce

This happens because tool_choice (toolConfig in Gemini API) was not being included in the cached content creation request. As a result, it remained in the subsequent completion request alongside cachedContent, which Gemini does not allow.

### Relevant log output

```shell error

"Tool config, tools and system instruction should not be set in the request when using cached content." ```

### What part of LiteLLM is this about?

SDK (litellm Python package)

### What LiteLLM version are you on ?

1.82.1

### Twitter / LinkedIn details

_No response_