update activemq javadoc link

Author: acoburn

build.gradle

@@ -403,7 +403,7 @@ subprojects { subproj ->
             links 'https://docs.oracle.com/javaee/7/api/'
             links 'https://commons.apache.org/proper/commons-rdf/apidocs/'
             links 'https://commons.apache.org/proper/commons-codec/apidocs/'
-            links 'https://activemq.apache.org/maven/5.15.6/apidocs/'
+            links 'https://activemq.apache.org/maven/apidocs/'
             links 'https://jena.apache.org/documentation/javadoc/rdfconnection/'
             links 'https://kafka.apache.org/20/javadoc/'
             links 'https://rabbitmq.github.io/rabbitmq-java-client/api/current/'
@@ -461,7 +461,7 @@ configure(rootProject) {
             links 'https://docs.oracle.com/javaee/7/api/'
             links 'https://commons.apache.org/proper/commons-rdf/apidocs/'
             links 'https://commons.apache.org/proper/commons-codec/apidocs/'
-            links 'https://activemq.apache.org/maven/5.15.6/apidocs/'
+            links 'https://activemq.apache.org/maven/apidocs/'
             links 'https://jena.apache.org/documentation/javadoc/rdfconnection/'
             links 'https://kafka.apache.org/20/javadoc/'
             links 'https://rabbitmq.github.io/rabbitmq-java-client/api/current/'