Signal dependency because of a single enum

When going through duplicate dependencies of the Fractal application, I found that the signal crate dependency first causes a duplicate dependency, because nix 0.14 is quite old, and it is pulled only because of the Signal enum. I'd personally move that enum to the Pipewire crate. Yes, that would be a breaking change for the crate users, but likely a welcome one. Would you be okay with accepting such a MR?