ttl: fix the issue that TTL job may hang some time when shrink the delete worker count (#55572)#55614

Merged

ti-chi-bot[bot] merged 2 commits intopingcap:release-8.1from ti-chi-bot:cherry-pick-55572-to-release-8.1

Aug 27, 2024

+299-74

Commits on Aug 23, 2024

ttl: fix the issue that TTL job may hang some time when shrink the delete worker count

lcwangchao
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ti-chi-bot
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lcwangchao
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ti-chi-bot
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