[8.x] [ML] Improve EIS authorization to perform requests on a periodic basis instead of only once (#123639)#123916

elasticsearchmachine merged 4 commits intoelastic:8.xelastic/elasticsearch:8.xfrom

jonathan-buttner:backport/8.x/pr-123639jonathan-buttner/elasticsearch:backport/8.x/pr-123639Copy head branch name to clipboard