chore(deps): update dependency autoprefixer to v9.1.5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
autoprefixer	devDependencies	minor	9.0.1 -> 9.1.5	source

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Release Notes

postcss/autoprefixer

v9.1.5

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• Remove @babel/register from dependencies.

v9.1.4

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• Use Babel 7.

v9.1.3

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• Sort properties in autoprefixer --info alphabetically.
• Fix old Firefox gradient prefix.

v9.1.2

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• Fix autoprefixer --info in new Node.js.

v9.1.1

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• Retain grid-gap through @media (by Bogdan Dolin).
• Fix grid-template and @media (by Bogdan Dolin).
• Fix Grid areas searching error (by Bogdan Dolin).
• Fix span X Grid prefix (by Bogdan Dolin).
• Fix docs (by Eduard Kyvenko).

v9.1.0

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Autoprefixer 9.1 brings background-clip: text and fix span in IE Grid.

Background Clip

background-clip: text beome to be the standard and got Edge support. So we added it to Autoprefixer:

.title {
  background: linear-gradient(yellow, red);
   -webkit-background-clip: text;
           background-clip: text;
}

Note, that Edge expect -webkit- prefix for this property.

Grid Layout Fix

@​bogdan0083 fixed an issue when media-query override some grid-template.

v9.0.2

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• Show warning on Grid area names conflict (by Bogdan Dolin).
• Fix documentation (by Sven Wagner).

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