Bumps [maven-site-plugin](https://github.com/apache/maven-site-plugin) from 3.8.2 to 3.9.1. - [Release notes](https://github.com/apache/maven-site-plugin/releases) - [Commits](https://github.com/apache/maven-site-plugin/compare/maven-site-plugin-3.8.2...maven-site-plugin-3.9.1) Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>