Bump org.apache.maven.plugins:maven-site-plugin from 3.12.1 to 3.20.0 (…

…#662)

Bumps [org.apache.maven.plugins:maven-site-plugin](https://github.com/apache/maven-site-plugin) from 3.12.1 to 3.20.0.
- [Commits](apache/maven-site-plugin@maven-site-plugin-3.12.1...maven-site-plugin-3.20.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-site-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -90,7 +90,7 @@
     <version.org.apache.maven.plugins.maven-project-info-reports-plugin>3.6.2</version.org.apache.maven.plugins.maven-project-info-reports-plugin>
     <version.org.apache.maven.plugins.maven-release-plugin>3.1.1</version.org.apache.maven.plugins.maven-release-plugin>
     <version.org.apache.maven.plugins.maven-resources-plugin>3.3.1</version.org.apache.maven.plugins.maven-resources-plugin>
-    <version.org.apache.maven.plugins.maven-site-plugin>3.12.1</version.org.apache.maven.plugins.maven-site-plugin>
+    <version.org.apache.maven.plugins.maven-site-plugin>3.20.0</version.org.apache.maven.plugins.maven-site-plugin>
     <version.org.apache.maven.plugins.maven-source-plugin>3.3.1</version.org.apache.maven.plugins.maven-source-plugin>
     <version.org.apache.maven.plugins.maven-surefire-plugin>3.4.0</version.org.apache.maven.plugins.maven-surefire-plugin>
     <version.org.codehaus.mojo.buildnumber-maven-plugin>3.2.0</version.org.codehaus.mojo.buildnumber-maven-plugin>