Geo: Recover stuck verification started rows

What does this MR do?

Part of #13839 (closed)

Follows on !47372 (merged)

If a job is lost or killed, it is possible (though unlikely) for rows to be stuck in verification_started state. This MR unsticks those after a timeout.

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry => behind feature flag
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.