Problem with the cloud release mechanism after recent Lake updates

[Peiyang-Song]

After recent Lake updates, we found that the cloud release mechanism is not working as expected. Specifically, on some supported architectures, where Lean Copilot is expected to directly download cloud release instead of re-building, the log indicates that a building still occurs. This does not create any actual bugs because Lean Copilot should be able to build just well on these supported architectures, yet it would be great if we fix the cloud release mechanism in the lakefile and make the process more convenient again.

[Peiyang-Song]

Seems like Issue #117 is related to this problem too.