ARTEMIS-5214 Ensuring stomp is loaded as a protocol on the server

I have seen a CI test failing once because the protocol was not loaded,
then I saw it failing all the time on my IDE.

This will ensure the protocol is always loaded.

tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/stomp/StompTestBase.java

@@ -45,6 +45,7 @@
 import org.apache.activemq.artemis.core.config.Configuration;
 import org.apache.activemq.artemis.core.config.CoreAddressConfiguration;
 import org.apache.activemq.artemis.core.protocol.stomp.Stomp;
+import org.apache.activemq.artemis.core.protocol.stomp.StompProtocolManagerFactory;
 import org.apache.activemq.artemis.core.remoting.impl.invm.InVMAcceptorFactory;
 import org.apache.activemq.artemis.core.remoting.impl.invm.InVMConnectorFactory;
 import org.apache.activemq.artemis.core.remoting.impl.netty.TransportConstants;
@@ -204,6 +205,8 @@ protected ActiveMQServer createServer() throws Exception {
       config.setPersistenceEnabled(true);
 
       ActiveMQServer activeMQServer = addServer(ActiveMQServers.newActiveMQServer(config, defUser, defPass));
+      // make sure Stomp is loaded
+      activeMQServer.addProtocolManagerFactory(new StompProtocolManagerFactory());
 
       if (isSecurityEnabled()) {
          ActiveMQJAASSecurityManager securityManager = (ActiveMQJAASSecurityManager) activeMQServer.getSecurityManager();