Remove versão do Docker Compose e ajusta configuração das redes no docker-compose.yml

docker-compose.yml

@@ -1,5 +1,3 @@
-version: "3.8"
-
 services:
   nest-stack:
     build:
@@ -21,7 +19,10 @@ services:
       - "com.neststack.managed=true"
     networks:
       - proxy-net
+      - postgres-18_default
 
 networks:
   proxy-net:
     external: true
+  postgres-18_default:
+    external: true