Bump maven-site-plugin from 3.7.1 to 3.9.1#5

dependabot-preview[bot] wants to merge 1 commit intomasternachoverdon/mongolia:masterfrom

dependabot/maven/org.apache.maven.plugins-maven-site-plugin-3.9.1nachoverdon/mongolia:dependabot/maven/org.apache.maven.plugins-maven-site-plugin-3.9.1Copy head branch name to clipboard