Update dependency eslint-plugin-prefer-let to v3 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint-plugin-prefer-let	^1.1.0 -> ^3.0.0

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Release Notes

thefrontside/javascript

### [`v3.0.1`](https://togithub.com/thefrontside/javascript/compare/eslint-plugin-prefer-let-v3.0.0...eslint-plugin-prefer-let-v3.0.1) [Compare Source](https://togithub.com/thefrontside/javascript/compare/eslint-plugin-prefer-let-v3.0.0...eslint-plugin-prefer-let-v3.0.1) ### [`v3.0.0`](https://togithub.com/thefrontside/javascript/compare/eslint-plugin-prefer-let-v2.0.0...eslint-plugin-prefer-let-v3.0.0) [Compare Source](https://togithub.com/thefrontside/javascript/compare/eslint-plugin-prefer-let-v2.0.0...eslint-plugin-prefer-let-v3.0.0) ### [`v2.0.0`](https://togithub.com/thefrontside/javascript/compare/eslint-plugin-prefer-let-v1.1.0...eslint-plugin-prefer-let-v2.0.0) [Compare Source](https://togithub.com/thefrontside/javascript/compare/eslint-plugin-prefer-let-v1.1.0...eslint-plugin-prefer-let-v2.0.0)

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Configuration

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