Update dependency org.apache.maven.plugins:maven-javadoc-plugin to v3.8.0

Author: renovate[bot]

pom.xml

@@ -92,7 +92,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
-          <version>3.2.0</version>
+          <version>3.8.0</version>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>