Misleading error message about `NexusLowRes` with `firebase refresh`

[pbreault]

Describe the bug

Unable to find device type for NexusLowRes. PHYSICAL used as fallback in cost calculations

When running the flank firebase refresh command, flank starts with default arguments, which include setting the device type to NexusLowRes. Since NexusLowRes no longer exists (as of 03/31/25), this triggers an error message about the device not being found. However, after this initial validation, flank loads the YAML from the last run and correctly uses the intended device for the cost calculation. The error message is misleading, but the end result is correct.

To Reproduce

run a build asynchronously
use firebase refresh to re-attach to the test run

Expected behavior
Should not show an error message.

Details:
Tested on flank v23.10.1