crate2nix: 0.12.0 -> 0.14.0
According to https://github.com/nix-community/crate2nix/releases,
0.13.0 contained mostly internal version updates and flake-specific
workflows irrelevant to this package build.
0.14.0 however contains https://github.com/nix-community/crate2nix/
issues/340, which contains a fix for Cargo.lock file changes from Rust
1.77.