Add a scheduled task to sync Smartling translations

[stevejalim]

Description

See https://github.com/mozilla/wagtail-localize-smartling/tree/main?tab=readme-ov-file#synchronization

We need a new k8s CronJob that runs every 10 mins on the editing deployment to pull translations into the primary DB

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Success Criteria

• [x] CronJob added with appropriate credentials
• [x] DMS monitoring the CronJob (for Dev, Stage and Prod)
• [ ] CronJob working in Dev