feat(linter): eslint-plugin-unicorn/prefer-prototype-methods

[haocheng6]

This PR implements the eslint-plugin-unicorn/prefer-prototype-methods rule.

Tests taken from https://github.com/sindresorhus/eslint-plugin-unicorn/blob/main/test/prefer-prototype-methods.mjs.

Related issue: #684

I added a "TODO" comment in the code because it looks like we don't have a utility function similar to getPropertyName (which uses getStaticValue under the hood) in @eslint-community/eslint-utils yet. I will try to implement the function sometime if no one else is working on it.

[codspeed-hq]

CodSpeed Performance Report

Merging #1660 will not alter performance

_{⚠️ No base runs were found}

_{Falling back to comparing haocheng6:684-prefer-prototype-methods (3145042) with main (90524c8)}

Summary

✅ 20 untouched benchmarks

[Dunqing]

Thank you for your contribution!

It looks like you are creating new rules manually. If you want to create a new rule you can run just new-unicorn-rule prefer-prototype-methods. The rule file will automatically created