docker-compose: expose postgres port by default to be accessible locally (#82)

docker-compose.yml

@@ -119,8 +119,8 @@ services:
       - ./postgres_cfg/db.sql:/docker-entrypoint-initdb.d/db.sql:Z
       - ${PG_DATA_DIR:-./postgresql}:/var/lib/postgresql/data:Z
     command: postgres -c config_file=/etc/postgresql/postgresql.conf
-    ports: []
-    #  - 127.0.0.1:5432:5432
+    ports:
+      - 127.0.0.1:5432:5432
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U postgres -d postgres"]
       interval: 30s