bug: all the listed groq models are deprecated

- [x] I have looked for existing issues (including closed) about this

## Bug Report
The models currently listed for the groq provider are all deprecated and are not usable anymore. We must update the list with the updated models.

## Reproduction
Try creating a simple groq agent and in the `.agent()` pass any listed groq model .

example
```js
.agent(groq::DEEPSEEK_R1_DISTILL_LLAMA_70B)
```

## Expected behavior
The agent should work and must not throw error `deprecated model`.

## Screenshots

## Additional context

Look for the Groq provider's model definitions in the codebase, likely in a file like `providers/groq.rs` or similar. Identify the list of deprecated models and compare with Groq's current model offerings. Update the list to include current, non-deprecated models. Test by creating a simple Groq agent with one of the updated models to ensure it works without the deprecated error.

Vom Indexierungsmodell aus dem Issue-Text verfasst.