Bump nixpkgs from 494ce7f to 151fa4e in the nix-inputs group

Bumps the nix-inputs group with 1 update: [nixpkgs](https://github.com/nixos/nixpkgs).


Updates `nixpkgs` from `494ce7f` to `151fa4e`
- [Commits](NixOS/nixpkgs@494ce7f...151fa4e)

---
updated-dependencies:
- dependency-name: nixpkgs
  dependency-version: 151fa4e8ddfdd8dd25d945ad94ed54a13de9f6e4
  dependency-type: direct:production
  dependency-group: nix-inputs
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]