Improve DevEx when doing changes in migrations

[UlisesGascon]

This PR introduce additional information and tasks to the contributors when they make changes to the migration files (demo).

[github-actions]

It looks like you've made changes to the migrations. Thanks for your contribution!

• Have you run npm run db:generate-schema to ensure the updated schemas are included in your PR?
• Have you run npm run db:migrate and then npm run db:rollback to confirm that rollbacks are working as expected?

Note: Please avoid making changes to existing migration files, as this will alter the file hash and could break migrations in production environments.