Long running imports don't time out when they go into a stale state

Summary

Some long running imports just get stuck and don't time out. This is a problem because users have no way to cancel the import and are also blocked from making changes to or deleting the project.

Expected behavior

We should check for imports taking longer than 1 day and fail them automatically.

Actual behavior

The import continues to run indefinitely.

Support team has gotten two tickets where long running imports just got stuck and didn't time out.

• https://gitlab.zendesk.com/agent/tickets/49442
• https://gitlab.zendesk.com/agent/tickets/49284

@MrChrisW had to fail these jobs manually.

/cc @jameslopez @MrChrisW