Bump html-webpack-plugin from 4.0.2 to 4.0.4

Bumps [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin) from 4.0.2 to 4.0.4. - [Release notes](https://github.com/jantimon/html-webpack-plugin/releases) - [Changelog](https://github.com/jantimon/html-webpack-plugin/blob/master/CHANGELOG.md) - [Commits](jantimon/html-webpack-plugin@v4.0.2...v4.0.4) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -23,7 +23,7 @@
  "babel-preset-env": "^1.7.0",
  "clean-webpack-plugin": "^3.0.0",
  "css-loader": "^3.4.2",
- "html-webpack-plugin": "^4.0.2",
+ "html-webpack-plugin": "^4.0.4",
  "mini-css-extract-plugin": "^0.9.0",
  "node-sass": "^4.13.1",
  "optimize-css-assets-webpack-plugin": "^5.0.3",