br: Update mysql.stats_meta after checksum in restore (#29429)

[ti-srebot]

cherry-pick #29429 to release-5.3
You can switch your code base to this Pull Request by using git-extras:

# In tidb repo:
git pr https://github.com/pingcap/tidb/pull/29479

After apply modifications, you can push your change to this PR via:

git push [email protected]:ti-srebot/tidb.git pr/29479:release-5.3-b64537d09033

---

Signed-off-by: joccau [email protected]

What problem does this PR solve?

Issue Number: close #29216

Problem Summary:
The mysql.stats_meta miss their updates and the row_count is still 0 after restore

What is changed and how it works?

Check List

Tests

• Manual test (add detailed scripts or steps below)

After restore, show the stats_meta

Release note

Update mysql.stats_meta after checksum in restore

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• kennytm
• winoros

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[ti-srebot]

/run-all-tests

[ti-srebot]

@joccau please accept the invitation then you can push to the cherry-pick pull requests. Comment with /cherry-pick-invite if the invitation is expired.
https://github.com/ti-srebot/tidb/invitations

[joccau]

/run-check_dev

[VelocityLight]

/merge

[ti-chi-bot]

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

Commit hash: 6d1929c

[winoros]

/merge

[winoros]

/merge

[ti-chi-bot]

@ti-srebot: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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