chore: update dependency prettier to v2.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
prettier (source)	2.3.2 -> 2.4.0

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Release Notes

prettier/prettier

### [`v2.4.0`](https://togithub.com/prettier/prettier/blob/master/CHANGELOG.md#​240) [Compare Source](https://togithub.com/prettier/prettier/compare/2.3.2...2.4.0) [diff](https://togithub.com/prettier/prettier/compare/2.3.2...2.4.0) 🔗 [Release Notes](https://prettier.io/blog/2021/09/09/2.4.0.html)

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