Add PR: reviews-approved label even though nobody approve PR

[sotayamashita]

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Summary

Add PR: reviews-approved label even though nobody approve PR.

Steps to reproduce

1. Create a PR
2. Leave a single comment

Pull Request URL

skip because of permission 😢

What is the current bug behavior?

Add PR: reviewed-approved

What is the expected correct behavior?

Do nothing

Relevant logs and/or screenshots

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logs, and code as it's very hard to read otherwise.)

Possible fixes

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