Aleph alpha llm (#12149)

* Added Aleph Alpha integration

* formatted and linted

* - fixed llm notebook;
- added additional request params like log_probs;
- added more tests

* how to access additional information such as log probabilities

* used built-in logprobs

---------

Co-authored-by: Ulan.Yisaev <ulan.yisaev@nortal.com>