domain: use dedicated lock for expiredTimeStamp4PC (#45802)#46212

Closed

ti-chi-bot wants to merge 1 commit intopingcap:release-6.4from ti-chi-bot:cherry-pick-45802-to-release-6.4

Commits on Aug 18, 2023

This is an automated cherry-pick of pingcap#45802

aidendou
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ti-chi-bot
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