fix: use dockerhub on override variable

.env

@@ -69,6 +69,10 @@ IS_KUBERNETES=false
 SHUFFLE_BASE_IMAGE_REPOSITORY=frikky
 #SHUFFLE_BASE_IMAGE_TAG_SUFFIX="-1.4.0"
 
+# For environments using their own docker registry
+# where they don't want to update http, subflow and shuffle tools again
+SHUFFLE_USE_DOCKERHUB_FOR_AUTODEPLOY=true
+
 # The eth0 interface inside a container corresponds 
 # to the virtual Ethernet interface that connects 
 # the container to the docker0