Update dependency html-webpack-plugin to v4.2.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
html-webpack-plugin	devDependencies	patch	4.2.0 -> 4.2.1

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Release Notes

jantimon/html-webpack-plugin

v4.2.1

Compare Source

Bug Fixes

• don't add dependencies twice to the webpack 5 watcher api (ceafe14)
• prevent scripts marked as hotModuleReplacement from being added to the html file (119252a)

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[coveralls]

Pull Request Test Coverage Report for Build 3227

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 3225:	0.0%
Covered Lines:	106
Relevant Lines:	106

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💛 - Coveralls