[infra] Fix maven-javadoc-plugin for releasing

Author: wuchong

pom.xml

@@ -1050,12 +1050,16 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-javadoc-plugin</artifactId>
-                    <version>2.9.1</version><!--$NO-MVN-MAN-VER$-->
+                    <version>3.8.0</version>
                     <configuration>
                         <quiet>true</quiet>
                         <detectOfflineLinks>false</detectOfflineLinks>
-                        <additionalJOptions combine.children="append">
+                        <release>11</release>
+                        <additionalJOptions>
                             <additionalJOption>-Xdoclint:none</additionalJOption>
+                            <additionalJOption>--allow-script-in-comments</additionalJOption>
+                            <!-- Suppress the error that is accepted by JDK 8 but not by JDK 11. -->
+                            <additionalJOption>--ignore-source-errors</additionalJOption>
                         </additionalJOptions>
                     </configuration>
                 </plugin>