Spring-ai Add Minimax auto-configuration

This PR added org.springframework.ai.autoconfigure.minimax.MiniMaxAutoConfiguration to the org.springframework.boot.autoconfigure.AutoConfiguration.imports file to ensure MinimaxService is properly auto-configured.

Comment From: markpollack

oops! Thanks for catching this.

Comment From: markpollack

merged in f5608be65d474be2781eb2f65ec1f99ad7c2ca67