[gnome-42-2204] Update libadwaita and add new yaru accent colors

[3v1n0]

See commits for details.

UDENG-4597

[3v1n0]

It's a stable update and we've been testing those fixes for long time in noble already, so also checking the code I'm quite confident that they don't break anything, but actually improve various things (including various crash or introspection fixes).

So I might have cherry-picked them, but I believe it's just safer to trust on upstream testing that has been done for some long time now.

[seb128]

Alright, let's give it a try