backend/local: fix panic while lightning quits (#33738)

[ti-srebot]

cherry-pick #33738 to release-5.3
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# In tidb repo:
git pr https://github.com/pingcap/tidb/pull/33796

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git push [email protected]:ti-srebot/tidb.git pr/33796:release-5.3-15a01fa50a7c

---

What problem does this PR solve?

Issue Number: close #33524

Problem Summary: as the issue

What is changed and how it works?

1. fix the panic log while lightning quits. It's caused by Close pebble before ingestSST for loop quits by check db before ingest.
2. add recover for places that are likely to panic.

Check List

Tests

• Unit test
• Integration test

Side effects

None

Documentation

None

Release note

None

[ti-chi-bot]

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[ti-chi-bot]

@ti-srebot: This cherry pick PR is for a release branch and has not yet been approved by release team.
Adding the do-not-merge/cherry-pick-not-approved label.

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[ti-srebot]

/run-all-tests

[ti-srebot]

@lichunzhu you're already a collaborator in bot's repo.

[ti-chi-bot]

This pull request is closed because its related version has closed automatic cherry-picking.
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