restore: correct new collation when "--check-requirements=false" (#49579)

[ti-chi-bot]

This is an automated cherry-pick of #49579

What problem does this PR solve?

Issue Number: close #49466

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

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

Please refer to Release Notes Language Style Guide to write a quality release note.

Fix the issue that unset new collation when --check-requirements=false

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: BornChanger, Leavrth

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-01-24 11:46:08.273299113 +0000 UTC m=+961209.837596829: ☑️ agreed by Leavrth.
• 2024-01-24 11:47:08.401140551 +0000 UTC m=+961269.965438258: ☑️ agreed by BornChanger.