Update dependency html-minifier to v4

This MR contains the following updates:

Package	Change	Age	Confidence
html-minifier (source)	^3.5.20 -> ^4.0.0

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Release Notes

kangax/html-minifier (html-minifier)

v4.0.0

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v3.5.21

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v3.5.20

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v3.5.19

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v3.5.18

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v3.5.17

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v3.5.16

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Configuration

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