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

Author: renovate[bot]

pom.xml

@@ -170,7 +170,7 @@
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-javadoc-plugin</artifactId>
-            <version>3.7.0</version>
+            <version>3.8.0</version>
             <executions>
               <execution>
                 <id>attach-javadocs</id>