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

Author: renovate[bot]

pom.xml

@@ -299,7 +299,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.7.0</version>
+                <version>3.8.0</version>
             </plugin>
         </plugins>
     </reporting>