Fix more tests

Signed-off-by: David Schwilk <david.schwilk@bosch.io>

internal/utils/persistence/src/test/java/org/eclipse/ditto/internal/utils/persistence/mongo/ops/eventsource/MongoEventSourceITAssertions.java

@@ -189,6 +189,7 @@ private Config getEventSourcingConfiguration() {
                 "akka.cluster.seed-nodes=[]\n" +
                 "akka.coordinated-shutdown.exit-jvm=off\n" +
                 "ditto.things.log-incoming-messages=true\n" +
+                "pre-enforcer-provider=org.eclipse.ditto.policies.enforcement.DefaultPreEnforcerProvider\n" +
                 "akka.contrib.persistence.mongodb.mongo.mongouri=\"" + mongoDbUri + "\"\n";
 
         // load the service config for info about event journal, snapshot store and metadata