Schedule a bash script that updates the JSON seeder files

[tammytee]

Summary

This task is a follow-up to #239.

The current implementation for updating seeder files requires maintainers to manually run the generate command locally and push the updated files to the repository.

For this task - create a bash script that will run the generator command, commit the changes, and open a PR with those changes to the repository.

General Idea:

Other changes:

Please review #537 to see other changes that may need to happen when making these changes.