Run docker integration tests using testcontainers

Author: hgeraldino

src/funtest/groovy/support/MongoHelper.groovy

@@ -18,7 +18,7 @@ class MongoHelper {
     static id = new AtomicLong()
 
     static prepareDB(){
-        def mongoDBContainer = new MongoDBContainer(DockerImageName.parse("mongo:4.0.10"))
+        def mongoDBContainer = new MongoDBContainer(DockerImageName.parse("mongo:3.2"))
         mongoDBContainer.setPortBindings(["27017:27017"])
 
         mongoDBContainer.start()