[8.19] Add Mistral AI Chat Completion support to Inference Plugin (#128538)#128947

jonathan-buttner merged 8 commits intoelastic:8.19elastic/elasticsearch:8.19from

Jan-Kazlouski-elastic:backport/8.19/pr-128538Jan-Kazlouski-elastic/elasticsearch:backport/8.19/pr-128538Copy head branch name to clipboard