* feat(Model)!: Update model constants
- Add new models Mistral Nemo and Codestral Mamba
- Add aliases to models constant to be deserialized seemlessly from the versioned forme (e.g.: "mistral-large-2407")
- The commonly named Mistral Large 2 is now `constants::Model::MistralLargeLatest` when the old one is `Model::MistralLarge`
* tests(Model): Update the tests to check the new model variants.