Following T341122: Implement daily data update routine, the daily data import process is as follows:
- Run diff.sh, which creates a .sql file for the database updates that need to be performed
- Run update-db.js to perform these database updates
This task is for ensuring that step 2 happens in batches. This is necessary because several millions of rows will be updated, and we need to pace this process so as not to choke up DB resources.