[Feature] CatBoost Model

[ErikBavenstrand]

Is your feature request related to a problem? Please describe.
Currently, the mleko library does not support CatBoost, a machine learning algorithm that provides high performance and handles categorical features well.

Describe the solution you'd like
I would like to see CatBoost integrated into the mleko library. This would provide users with more options for machine learning algorithms and enhance the library's capabilities.

Describe alternatives you've considered
An alternative would be to use CatBoost separately and then use mleko for other parts of the machine learning pipeline. However, having everything integrated into one library would be more convenient.

Additional context
CatBoost is a powerful machine learning algorithm that is widely used in the industry. Its inclusion would greatly enhance the capabilities of the mleko library.