fix(newt): drop DOCKER_ENFORCE_NETWORK_VALIDATION

Newt 1.18.1 enforces this feature; newt runs on the default bridge and
resource targets are host-IP ports, so the host-container lookup can never
match -> 'failed to find host container' on every docker event, breaking
docker-label blueprint provisioning (since 1.12.5->1.18.1 bump on Oct 2).

automation/compose.yaml

@@ -104,7 +104,6 @@ services:
       - "HOST_CONTAINERNAME=Newt"
       - "HOST_OS=Unraid"
       - "NEWT_ID=nj3wvqzj44a8sh1"
-      - "DOCKER_ENFORCE_NETWORK_VALIDATION=true"
       - "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
 
     expose:
@@ -168,7 +167,6 @@ services:
       - "HOST_HOSTNAME=Atlas"
       - "HOST_CONTAINERNAME=Newt-secondary"
       - "DOCKER_SOCKET=/var/run/docker.sock"
-      - "DOCKER_ENFORCE_NETWORK_VALIDATION=true"
       - "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
 
     expose: