Bump maven-javadoc-plugin to 3.3.1

Author: slachiewicz

pom.xml

@@ -414,6 +414,11 @@ under the License.
           <artifactId>maven-jxr-plugin</artifactId>
           <version>3.1.1</version>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-javadoc-plugin</artifactId>
+          <version>3.3.1</version>
+        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>