Call for testing: `stable` branch for Bluefin/Aurora

I did not, and my best attempt looking at others, they did not as well.

I still can’t tell if it is my screw up as I originally did a sudo bootupctl update and everything was fine after rebooting. A few days later I then overlayed packages. A little bit after this I noticed the below issue from Travier. (Thus I don’t feel comfortable filing an issue for Universal Blue from my perspective.)

Apparently it did look like Bluefin and Aurora had trouble, although maybe they updated their bootloader as well.