[8.x] [scout] adding test helper @kbn/scout-oblt package and uptate onboarding tests (#209761)#211490

dmlemeshko merged 4 commits intoelastic:8.xelastic/kibana:8.xfrom

dmlemeshko:backport/8.x/pr-209761dmlemeshko/kibana:backport/8.x/pr-209761Copy head branch name to clipboard