Storages: fix a series of data race issues (#9962)

[ti-chi-bot]

This is an automated cherry-pick of #9962

What problem does this PR solve?

Issue Number: close #9961

Problem Summary:

What is changed and how it works?

1. We should not reuse anything which is not thread-safe between different queries, so do not reuse `ann_query_info` in unit tests.
2. Fix `FileCache::bgDownload` may still be running after `FileCache::shutdown`.
3. Suppress false positive alarm in `~shared_ptr`  and `re2::RE2::NumberOfCapturingGroups`.
4. Suppress alarm in `TiFlashStorageTestBasic::reload` which is only used in unit tests.
5. Fix data race between `DeltaMergeStore::segmentWaitDeltaLocalIndexReady` and `ColumnFilePersistedSet::updatePersistedColumnFilesAfterAddingIndex`

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
  Run the unit test cases with TSAN built binary
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Fix a data race issue by waiting for all background task done when shutting down under disagg arch

[ti-chi-bot]

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[ti-chi-bot]

This cherry pick PR is for a release branch and has not yet been approved by triage owners.
Adding the do-not-merge/cherry-pick-not-approved label.

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[ti-chi-bot]

@Lloyd-Pottiger This PR has conflicts, I have hold it.
Please resolve them or ask others to resolve them, then comment /unhold to remove the hold label.

[ti-chi-bot]

@ti-chi-bot: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-unit-test	f8d3926	link	true	/test pull-unit-test
pull-integration-test	f8d3926	link	true	/test pull-integration-test

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