[inference] Add support for o3

[pgayvallet]

It has been reported that using the inference APIs with openAI's o3 results in an error because we're always sending the temperature parameter, and o3 doesn't support it.

Unfortunately, I don't think there' a "good" way to do this, so my only idea is to just check the model's name for this, which would be somewhat similar to what we do to "detect" native function calling:

https://github.com/elastic/kibana/blob/main/x-pack/platform/plugins/shared/inference/server/chat_complete/utils/function_calling_support.ts#L11-L26

[elasticmachine]

Pinging @elastic/appex-ai-infra (Team:AI Infra)