[8.x] [DOCS] Documents `dimensions` param for `openai` service of Inference API (#118317)#118335

elasticsearchmachine merged 1 commit intoelastic:8.xelastic/elasticsearch:8.xfrom

szabosteve:backport/8.x/pr-118317szabosteve/elasticsearch:backport/8.x/pr-118317Copy head branch name to clipboard