fix: postgres container volume

compose.yaml

@@ -30,7 +30,7 @@ services:
       POSTGRES_USER: myuser
       POSTGRES_DB: pathtoglory
     volumes:
-      - pgdata:/home/arthur/sources/node/pathtoglory/postgresql/data
+      - ./postgres:/var/lib/postgresql
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -d $${POSTGRES_DB} -U $${POSTGRES_USER}"]
       interval: 1s
@@ -66,5 +66,4 @@ networks:
     driver: bridge
 
 volumes:
-  pgdata:
   rss-data: