Bump org.apache.maven.plugins:maven-javadoc-plugin from 3.5.0 to 3.6.0

Bumps [org.apache.maven.plugins:maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin) from 3.5.0 to 3.6.0.
- [Release notes](https://github.com/apache/maven-javadoc-plugin/releases)
- [Commits](apache/maven-javadoc-plugin@maven-javadoc-plugin-3.5.0...maven-javadoc-plugin-3.6.0)

---
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] <[email protected]>

pom.xml

@@ -87,7 +87,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-javadoc-plugin</artifactId>
-        <version>3.5.0</version>
+        <version>3.6.0</version>
         <configuration>
           <excludePackageNames>de.sfuhrm.foo</excludePackageNames>
           <failOnError>false</failOnError>