Fix linting errors

scripts/commodities.rb

@@ -134,7 +134,7 @@ def provision_commodities(root_loc, new_containers)
   # If you later modify .commodities to allow this to run again (e.g. if you've added new apps to your group),
   # you'll need to delete the postgres container and it's volume else you'll get errors.
   # Do a fullreset, or docker-compose rm -v -f postgres-13
-  %w(13, 17).each do |postgres_version|
+  %w[13 17].each do |postgres_version|
     provision_postgres(root_loc, new_containers, postgres_version)
     # Alembic, too
     provision_alembic(root_loc, postgres_version)