Update dependency autoprefixer to v10.4.18

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
autoprefixer	10.4.7 -> 10.4.18

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Release Notes

postcss/autoprefixer (autoprefixer)

v10.4.18

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• Fixed removing -webkit-box-orient on -webkit-line-clamp (@​Goodwine).

v10.4.17

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• Fixed user-select: contain prefixes.

v10.4.16

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• Improved performance (by Romain Menke).
• Fixed docs (by Christian Oliff).

v10.4.15

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• Fixed ::backdrop prefixes (by 一丝).
• Fixed docs (by Christian Oliff).

v10.4.14

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• Improved startup time and reduced JS bundle size (by Kārlis Gaņģis).

v10.4.13

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• Fixed missed prefixes on vendor prefixes in name of CSS Custom Property.

v10.4.12

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• Fixed support of unit-less zero angle in backgrounds (by 一丝).

v10.4.11

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• Fixed text-decoration prefixes by moving to MDN data (by Romain Menke).

v10.4.10

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• Fixed unicode-bidi prefixes by moving to MDN data.

v10.4.9

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• Fixed css-unicode-bidi issue from latest Can I Use.

v10.4.8

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• Do not print color-adjust warning if print-color-adjust also is in rule.

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