server: honor scheduler concurrency for coordinator (#4832)#5396

ti-chi-bot wants to merge 1 commit into

pingcap:release-8.5pingcap/ticdc:release-8.5from

ti-chi-bot:cherry-pick-4832-to-release-8.5ti-chi-bot/ticdc-1:cherry-pick-4832-to-release-8.5Copy head branch name to clipboard