tiup: complete tiup cluster tls desc (#22861)#22871

ti-chi-bot[bot] merged 2 commits into

pingcap:release-7.1pingcap/docs:release-7.1from

ti-chi-bot:cherry-pick-22861-to-release-7.1ti-chi-bot/docs:cherry-pick-22861-to-release-7.1Copy head branch name to clipboard