build(deps-dev): bump html-webpack-plugin from 4.0.0 to 4.2.0 in /html (#313)

build(deps-dev): bump html-webpack-plugin from 4.0.0 to 4.2.0 in /html (#313)

Bumps [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin) from 4.0.0 to 4.2.0.
- [Release notes](https://github.com/jantimon/html-webpack-plugin/releases)
- [Changelog](https://github.com/jantimon/html-webpack-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jantimon/html-webpack-plugin/compare/v4.0.0...v4.2.0)

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