*: PoC to verify the can-merge label

[etoqsh]

What problem does this PR solve?

Issue Number: close #524

Problem Summary:

What is changed and how it works?

Proposal: xxx

What's Changed:

How it Works:

Check List

Tests

• [ ] Unit test
• [ ] Integration test
• [ ] Manual test (add detailed scripts or steps below)
• [x] 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

Please add a release note, or a 'None' if it is not needed.

[mini-bot]

[REVIEW NOTIFICATION]

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[mini-bot]

Welcome @etoqsh! It looks like this is your first PR to ti-community-infra/test-dev 🎉

[mini-bot]

@etoqsh: Thanks for your contribution, but this is just a code repository for testing.

Instructions for interacting with me using PR comments are available [here](https://prow.tidb.io/command-help). If you have questions or suggestions related to my behavior, please file an issue against the [ti-community-infra/tichi](https://github.com/ti-community-infra/tichi/issues/new?title=Prow%20issue:) repository.

[mini-bot]

Hi @etoqsh. Thanks for your PR.

I'm waiting for a ti-community-infra member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[ti-chi-bot]

Issues go stale after 90d of inactivity. Mark the issue as fresh with /remove-lifecycle stale. Stale issues rot after an additional 30d of inactivity and eventually close. If this issue is safe to close now please do so with /close. Send feedback to sig-community-infra or Mini256. /lifecycle stale

[ti-chi-bot]

Stale issues rot after 30d of inactivity. Mark the issue as fresh with /remove-lifecycle rotten. Rotten issues close after an additional 30d of inactivity. If this issue is safe to close now please do so with /close. Send feedback to sig-community-infra or Mini256. /lifecycle rotten