Bump org.apache.maven.plugins:maven-javadoc-plugin from 3.7.0 to 3.8.0

Bumps [org.apache.maven.plugins:maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin) from 3.7.0 to 3.8.0.
- [Release notes](https://github.com/apache/maven-javadoc-plugin/releases)
- [Commits](apache/maven-javadoc-plugin@maven-javadoc-plugin-3.7.0...maven-javadoc-plugin-3.8.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -78,7 +78,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <!-- Maven Plugin Versions -->
         <maven.cyclonedx.plugin.version>2.8.0</maven.cyclonedx.plugin.version>
-        <maven.javadoc.plugin.version>3.7.0</maven.javadoc.plugin.version>
+        <maven.javadoc.plugin.version>3.8.0</maven.javadoc.plugin.version>
         <maven.source.plugin.version>3.3.1</maven.source.plugin.version>
         <maven.jar.plugin.version>3.4.2</maven.jar.plugin.version>
         <maven.github.release.plugin.version>1.6.0</maven.github.release.plugin.version>