Add new entries to model registry

[Gnurro]

Added models: EuroLLM-9B-Instruct, QwQ-32B-Preview, aya-expanse-32b, Teuken-7B-instruct-research-v0.4 and Teuken-7B-instruct-commercial-v0.4
Teuken models may not work with the default huggingface backend without modification as they use extensive custom transformers code and require trust_remote_code=True.

[sherzod-hakimov]

Please then test whether these models run one experiment of any game and exclude the ones that don't run.

[Gnurro]

The Teuken models can be run as-is, but require a manual input in terminal each time they are loaded, which happens once for each clemgame. This makes batch-running the entire benchmark a lot more complicated, as the prompt to run remote code has a rather short time limit before it simply fails to load the model. This could be handled by adding handling of trust_remote_code in the HF backend code and model registry, as I've already written here: https://github.com/Gnurro/clembench/blob/hf_trust_remote_code/backends/huggingface_local_api.py
We've so far refrained from running models that require this, as is customary in benchmarking LLMs, so I'll remove the Teuken model entries.