*: replace BenMeadowcroft with likidu in HACKED_OWNERS_ALIASES

[wuhuizuo]

What is changed and how it works?

Issue Number: N/A (GitHub Issues disabled); ref Multica FLA-119

What's Changed:

*: replace BenMeadowcroft with likidu in HACKED_OWNERS_ALIASES

• Replace BenMeadowcroft -> likidu in HACKED_OWNERS_ALIASES.
• CI: bump actions/cache from v2 to v4 in .github/workflows/pr-ci.yml (v2 deprecation was failing build-check-old).

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• Need to cherry-pick to the release branch

Check List

Tests

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

Side effects

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

Release note

None

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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Needs approval from an approver in each of these files:

• HACKED_OWNERS

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[wuhuizuo]

/retest

[wuhuizuo]

/retest

[ti-chi-bot]

@wuhuizuo: The following test 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	8c5f204	link	true	/test pull-unit-test

Full PR test history. Your PR dashboard.

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