service_safe_point

[shiyuhang0]

What problem does this PR solve?

See https://github.com/pingcap/tispark/pull/2634 for more details

Also has test manually.

Update service safe point to 439943270019629056 (2023-03-08 12:39:49)

The gc safe point is paused to 2023-03-08 12:39:49 successfully

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• xuanyu66
• zhangyangyu

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[shiyuhang0]

/run-all-tests

[shiyuhang0]

/run-all-tests

[shiyuhang0]

/run-all-tests

[shiyuhang0]

/run-all-tests

[shiyuhang0]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 9241bc6a925ad4ebd3c6c196a24d8a7d45f92a2d

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-3.2: #2646.