Bump html-webpack-plugin from 5.6.2 to 5.6.3 in /client

Bumps [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin) from 5.6.2 to 5.6.3.
- [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@v5.6.2...v5.6.3)

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

Signed-off-by: dependabot[bot] <[email protected]>