use ro user for grocery db

docker-compose.yml

@@ -57,11 +57,10 @@ services:
   grocery:
     image: lovasoa/sqlpage
     hostname: grocery-sqlpage
-    environment:
-      SQLPAGE_DATABASE_URL: ${SQLPAGE_DATABASE_URL}
     volumes:
       - ./grocery-transactions/sqlpage:/var/www/
       - ./grocery-transactions/sqlpage/sqlpage:/etc/sqlpage:ro
+      - ./grocery-transactions/sqlpage/sqlpage/sqlpage.json:/etc/sqlpage/sqlpage.json:ro
     expose:
       - 6772
     networks:

grocery-transactions

@@ -1 +1 @@
-Subproject commit 688aef31101c4795d629f3d44fe3109cd9c66409
+Subproject commit 66bd3bfa87c588de65fc936cabc9920ed5785e73