add missing mount point for grocery site and update submodule

docker-compose.yml

@@ -47,6 +47,7 @@ services:
     hostname: grocery-pyapi
     volumes:
       - ./grocery-transactions/sqlpage:/var/www/
+      - ./grocery-transactions/sqlpage/sqlpage/migrations:/etc/sqlpage/migrations
       - ./sqlpage.json:/etc/sqlpage/sqlpage.json
     expose:
       - 6772

grocery-transactions

@@ -1 +1 @@
-Subproject commit f1af5756447d60c4a53efac496e18f6fadb69231
+Subproject commit 38c27f9ff91537b79c81918d37756cd536754a68