chore(deps): update dependency autoprefixer to v9.8.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
autoprefixer	9.6.1 -> 9.8.8

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Release Notes

postcss/autoprefixer (autoprefixer)

### [`v9.8.8`](https://togithub.com/postcss/autoprefixer/releases/tag/9.8.8) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.8.7...9.8.8) - Replaced `nanocolors` with `picocolors`. - Reduced package size. ### [`v9.8.7`](https://togithub.com/postcss/autoprefixer/releases/tag/9.8.7) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.8.6...9.8.7) - Replaced `colorette` with `nanocolors`. - Reduced package size. ### [`v9.8.6`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#986) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.8.5...9.8.6) - Fixed `env` option. ### [`v9.8.5`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#985) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.8.4...9.8.5) - Improved Grid Layout warnings (by Daniel Tonon). - Fixed `align-self` and `justify-self` with `display: flex` (by Daniel Tonon). ### [`v9.8.4`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#984) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.8.3...9.8.4) - Replace color output library. ### [`v9.8.3`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#983) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.8.2...9.8.3) - Return old non-LTS Node.js versions to avoid breaking changes. ### [`v9.8.2`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#982) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.8.1...9.8.2) - Remove Node.js 13.0-13.7 from supported engines, because of buggy ESM support. ### [`v9.8.1`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#981) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.8.0...9.8.1) - Replace `chalk` to `kleur` (by Luke Edwards). - Update docs (by [@​mbomb007](https://togithub.com/mbomb007)). ### [`v9.8.0`](https://togithub.com/postcss/autoprefixer/releases/tag/9.8.0): 9.8 “Vigilo Confido” [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.7.6...9.8.0) Autoprefixer 9.8 brings IE support for `:placeholder-shown`. #### Placeholder Shown [@​tkrotoff](https://togithub.com/tkrotoff) [found](https://togithub.com/postcss/autoprefixer/issues/1311) that `input:placeholder-shown` can be emulated with `input:-ms-input-placeholder`. ```css input:-ms-input-placeholder { box-shadow: 0 0 0 1px blue; } input:placeholder-shown { box-shadow: 0 0 0 1px blue; } ``` Note, that we already had support for `::placeholder`. Selector `::placeholder` is for the *text* of the placeholder. `:placeholder-shown` is for the input, where placeholder text is shown. In `::placeholder` you can’t change the border or size of the ``. ### [`v9.7.6`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#976) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.7.5...9.7.6) - Revert `-webkit-stretch` fix. ### [`v9.7.5`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#975) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.7.4...9.7.5) - Fix `-webkit-stretch` support. ### [`v9.7.4`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#974) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.7.3...9.7.4) - Fix warning text (by Dmitry Ishkov). ### [`v9.7.3`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#973) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.7.2...9.7.3) - Fix compatibility with PostCSS Modules. ### [`v9.7.2`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#972) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.7.1...9.7.2) - Add `-ms-user-select: element` support. - Add funding link for `npm fund`. ### [`v9.7.1`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#971) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.7.0...9.7.1) - Avoid unnecessary transitions in prefixed selectors (by Andrey Alexandrov). - Fix `fit-content` for Firefox. ### [`v9.7.0`](https://togithub.com/postcss/autoprefixer/releases/tag/9.7.0): 9.7 “Ad Victoriam” [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.6.5...9.7.0) Autoprefixer 9.7 brings `AUTOPREFIXER_GRID` environment variable and huge performance improvments. ##### Grid Environment Variable Autoprefixer can add [CSS Grid polyfills for IE](https://togithub.com/postcss/autoprefixer#does-autoprefixer-polyfill-grid-layout-for-ie). You need to manually enable it to prove that you understand the limits of polyfill. In previous versions you can enable Grid polyfill by `grid: 'autoplace'` option or by `/* autoprefixer grid: autoplace */` control comment. But in some cases, developers were not able to use both methods. For instance, during [work with Material UI’ CSS-in-JS in Create React App](https://togithub.com/postcss/autoprefixer/issues/1257). Now Autoprefixer supports environment variable to enable CSS Grid polyfill: ```sh AUTOPREFIXER_GRID=autoplace npm build ``` ##### Performance Improvements [@​Knagis](https://togithub.com/Knagis) [found](https://togithub.com/postcss/autoprefixer/issues/1256) that Browserslist takes 70% of the Autoprefixer time.  We did a lot of improvements in Browserslist and now Autoprefixer should work much faster.  ##### Other - Fix [`Cannot read property 'grid' of undefined`](https://togithub.com/postcss/autoprefixer/issues/1244) error ### [`v9.6.5`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#965) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.6.4...9.6.5) - Fix selector prefixing (by Andrey Alexandrov). ### [`v9.6.4`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#964) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.6.3...9.6.4) - Now the real fix for `'startsWith' of undefined` error. ### [`v9.6.3`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#963) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.6.2...9.6.3) - Fix `Cannot read property 'startsWith' of undefined` error. ### [`v9.6.2`](https://togithub.com/postcss/autoprefixer/blob/HEAD/CHANGELOG.md#962) [Compare Source](https://togithub.com/postcss/autoprefixer/compare/9.6.1...9.6.2) - Fix false `Replace fill to stretch` warning.

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