Update custom Doclet configuration for javadoc

From version 3.0 and up `javadoc` has updated parameter names used in custom Doclet configurations, which affects our internal devsite scripts.
This PR updates the config to use the new parameters names.

Author: lahirumaramba

pom.xml

@@ -123,16 +123,16 @@
                                     <version>1.3</version>
                                 </additionalDependency>
                             </additionalDependencies>
-                            <additionalparam>
-                                -hdf book.path /docs/reference/_book.yaml
-                                -hdf project.path /_project.yaml
-                                -hdf devsite.path /docs/reference/admin/java/reference/
-                                -d ${project.build.directory}/apidocs
-                                -templatedir ${devsite.template}
-                                -toroot /docs/reference/admin/java/reference/
-                                -yaml _toc.yaml
-                                -warning 101
-                            </additionalparam>
+                            <additionalOptions>
+                                <additionalOption>-hdf book.path /docs/reference/_book.yaml</additionalOption>
+                                <additionalOption>-hdf project.path /_project.yaml</additionalOption>
+                                <additionalOption>-hdf devsite.path /docs/reference/admin/java/reference/</additionalOption>
+                                <additionalOption>-d ${project.build.directory}/apidocs</additionalOption>
+                                <additionalOption>-templatedir ${devsite.template}</additionalOption>
+                                <additionalOption>-toroot /docs/reference/admin/java/reference/</additionalOption>
+                                <additionalOption>-yaml _toc.yaml</additionalOption>
+                                <additionalOption>-warning 101</additionalOption>
+                            </additionalOptions>
                             <useStandardDocletOptions>false</useStandardDocletOptions>
                             <additionalJOption>-J-Xmx1024m</additionalJOption>
                         </configuration>