chore(deps): bump org.apache.maven.plugins:maven-javadoc-plugin

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] <[email protected]>

pom.xml

@@ -64,7 +64,7 @@
     <fabric8-client.version>6.12.1</fabric8-client.version>
     <jenvtest.version>0.9.7</jenvtest.version>
     <nexus-staging-maven-plugin.version>1.7.0</nexus-staging-maven-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-gpg-plugin.version>3.2.4</maven-gpg-plugin.version>
     <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
   </properties>