(doc) update plugins to improve javadoc/site generation
diff --git a/pom.xml b/pom.xml
index cb14fb3..153dfed 100644
--- a/pom.xml
+++ b/pom.xml
@@ -414,6 +414,15 @@
           <groupId>org.apache.rat</groupId>
           <artifactId>apache-rat-plugin</artifactId>
         </plugin>
+        <plugin>
+          <artifactId>maven-javadoc-plugin</artifactId>
+          <version>3.2.0</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.1.2</version>
+        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>