build(deps-dev): bump html-webpack-plugin in /frontend (#2194)

Bumps [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin) from 5.5.3 to 5.6.0.
- [Release notes](https://github.com/jantimon/html-webpack-plugin/releases)
- [Changelog](https://github.com/jantimon/html-webpack-plugin/blob/main/CHANGELOG.md)
- [Commits](jantimon/html-webpack-plugin@v5.5.3...v5.6.0)

---
updated-dependencies:
- dependency-name: html-webpack-plugin
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

frontend/package-lock.json

@@ -38,7 +38,7 @@
     "eslint-plugin-no-unsanitized": "^4.0.1",
     "eslint-plugin-prettier": "^3.4.1",
     "file-loader": "^6.0.0",
-    "html-webpack-plugin": "^5.5.3",
+    "html-webpack-plugin": "^5.6.0",
     "mini-css-extract-plugin": "^2.7.6",
     "node-sass": "^9.0.0",
     "prettier": "1.19.1",