Setup cron for ol-backup1 for ol-db0 (archival cron)

### Feature Request

## Problem / Opportunity

- provision `ol-backup1`
- setup cron

## Proposal

### Breakdown

Implementation Details (for maintainers)

#### Related files

Refer to [this map of common Endpoints](https://docs.openlibrary.org/developers/backend/endpoints.html):
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#### Requirements Checklist
Checklist of requirements that need to be satisfied in order for this issue to be closed:
* [ ]

#### Stakeholders

*

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