build(deps): bump org.apache.maven.plugins:maven-site-plugin (#63)

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

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

pom.xml

@@ -56,7 +56,7 @@
         <maven-javadoc-plugin.version>3.8.0</maven-javadoc-plugin.version>
         <maven-project-info-reports-plugin.version>3.7.0</maven-project-info-reports-plugin.version>
         <maven-resources-plugin.version>3.3.1</maven-resources-plugin.version>
-        <maven-site-plugin.version>3.12.1</maven-site-plugin.version>
+        <maven-site-plugin.version>3.20.0</maven-site-plugin.version>
         <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
         <maven-surefire-plugin.version>3.4.0</maven-surefire-plugin.version>
         <neo4j-java-driver.version>4.4.18</neo4j-java-driver.version>