refactor: use slices.Contains to simplify code

[yinwenyu6]

There is a new function added in the go1.21 standard library, which can make the code more concise and easy to read.

Implementation details

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[yinwenyu6]

Thanks for your review!

[yinwenyu6]

@RogerKSI Thanks. If there's anything need I to do, please feel free to let me know.