Update dependency autoprefixer to v10.5.4

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
autoprefixer	10.4.20 → 10.5.4

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Release Notes

postcss/autoprefixer (autoprefixer)

v10.5.4

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• Fixed prefixed rule duplication (by @​xianjianlf2).

v10.5.3

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• Fixed brackets and gradient parser (@​alanturing881).

v10.5.2

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• Moved -webkit-fill-available before -moz-available, so Firefox
  will use -webkit- version which is closer to stretch.

v10.5.1

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• Fixed grid-area span reset for overriding areas (by @​puneetdixit200).

v10.5.0

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• Added mask-position-x and mask-position-y support (by @​toporek).

v10.4.27

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• Removed development key from package.json.

v10.4.26

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• Reduced package size.

v10.4.25

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• Fixed broken gradients on CSS Custom Properties (by @​serger777).

v10.4.24

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• Made Autoprefixer a little faster (by @​Cherry).

v10.4.23

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• Reduced dependencies (by @​hyperz111).

v10.4.22

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• Fixed stretch prefixes on new Can I Use database.
• Updated fraction.js.

v10.4.21

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• Fixed old -moz- prefix for :placeholder-shown (by @​Marukome0743).

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[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request updates the 'autoprefixer' dependency from version 10.4.20 to 10.4.21, which includes a fix for the old '-moz-' prefix for ':placeholder-shown'.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Updated the 'autoprefixer' dependency to the latest version.	Changed the version of 'autoprefixer' from 10.4.20 to 10.4.21 in the package-lock.json file. The update includes a fix for the old '-moz-' prefix for ':placeholder-shown'.	package-lock.json

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