add exposed port

Author: s3inlc

.devcontainer/docker-compose.postgres.yml

@@ -30,6 +30,8 @@ services:
     container_name: hashtopolis-db-dev
     image: postgres:13
     restart: always
+    ports:
+      - "5432:5432"
     volumes:
       - hashtopolis-db-dev:/var/lib/postgresql/data
     environment: