Dev Task: Repurpose test namespace for staging deployments

[conbrad]

Describe the task To make more effective use of our test namespace, which we previously used to basically mirror dev deployments, we can use it as a staging environment. A staging environment would be the first place to deploy the main branch to before prod, and would have representative data in the database to catch/alert us on data related issues.

Acceptance Criteria

• [ ] Test namespace restores data from prod backups nightly, to reflect the prod data state.
• [ ] Workflows change from a direct to prod deployment from dev, to an optional staging deployment, then prod deployment. Optional staging deployment would be considered if the change is data related or not.
• [ ] Alerts and monitoring for staging reflects that of prod, with perhaps lower thresholds

Additional context

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