Update dependency autoprefixer to v10.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
autoprefixer	10.3.7 -> 10.4.0

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Release Notes

postcss/autoprefixer

### [`v10.4.0`](https://togithub.com/postcss/autoprefixer/releases/10.4.0) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/10.3.7...10.4.0) In Autoprefixer 10.4 [@​lukewarlow](https://togithub.com/lukewarlow) added `:autofill` support: ```css input:-webkit-autofill { background-color: red; } input:autofill { background-color: red; } ```

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