Update persistent data dir for Postgres

Author: atodorov

docker-compose.yml

@@ -5,7 +5,7 @@ services:
         container_name: postgresql_database
         image: postgres:latest
         volumes:
-            - postgresql_database_data:/var/lib/postgresql/data
+            - postgresql_database_data:/var/lib/postgresql
         restart: always
         ports:
             - 5432:5432