buildpath, notesnook: change mongodb user

docker/production/buildpath/docker-compose.yml

@@ -3,6 +3,7 @@ services:
     hostname: mongo
     image: mongo:8.2.2
     restart: always
+    user: mongodb:mongodb
     volumes:
       - mongo_data:/data/db
       - mongo_data:/data/configdb

docker/tools/notesnook/docker-compose.yml

@@ -2,6 +2,7 @@ services:
   notesnook-db:
     image: mongo:8.2.2
     hostname: notesnookdb
+    user: mongodb:mongodb
     volumes:
       - dbdata:/data/db
       - dbdata:/data/configdb