chore(deps): update dependency autoprefixer to ^10.4.20

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
autoprefixer	^10.4.19 -> ^10.4.20

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Release Notes

postcss/autoprefixer (autoprefixer)

### [`v10.4.20`](https://redirect.github.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#10420) [Compare Source](https://redirect.github.com/postcss/autoprefixer/compare/10.4.19...10.4.20) - Fixed `fit-content` prefix for Firefox.

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Configuration

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