[fix](cloud) serialize cache init to avoid unstable cache pick (#44429)

[freemandealer]

pick #44429

The original paralleled cache init will causing unstable pick of cache base path because the choice depends on the order of init which could be different after each BE reboot. Thus, cause cache missing and duplicate cache block across multiple caches (disk space waste).

This commit will serialize the init process of multiple cache and using fixed order, i.e. the order explicitly declared in be conf: file_cache_path.

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

Release note

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Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • No.
  • Yes.

• Does this need documentation?

  • No.
  • Yes.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

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1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
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[freemandealer]

run buildall

[freemandealer]

run buildall

[freemandealer]

run cloud_p0

[freemandealer]

run buildall

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.