Refresh to incorporate mesa d0 fix

[waveform80]

Could the gnome content snap, specifically the gnome-42-2204 version which is currently the base for all seeded snaps in the Ubuntu images, be rebuilt to incorporate the recent SRU of the fix for D0 stepping compatibility on the Raspberry Pi 5/500/CM5 (LP: #2082072)?

The SRU linked has now completed verification and been released to updates. However, because the seeded snaps (snap-store, firefox, and thunderbird) on noble, oracular, and (in future plucky) rely on the gnome snap for their mesa, they are currently incompatible and crash the desktop when launched on a Pi using the D0 stepping (currently the CM5, 500, and 2GB variants of the 5, but this now forms the basis for future production runs of all models and thus will only become more prevalent).

I think I'm correct in saying both the gnome-sdk and gnome snap will need rebuilds as it appears the latter obtains some of its content from the former?

[waveform80]

I note the gnome-sdk snap has now been rebuilt, and the gnome content snap in latest/candidate appears to have been updated from that. I've tested the latest/candidate version on oracular on a Pi with a D0 stepping chip successfully.

Specifically: snap-store and firefox both launched successfully after refreshing gnome-42-2204 to latest/candidate from latest/stable. Testing on a pre-D0 Pi 5 also operated successfully, so the result should be compatible with both steppings.