build(deps): bump nixpkgs from 8110df5 to 4c1018d

Bumps [nixpkgs](https://github.com/NixOS/nixpkgs) from `8110df5` to `4c1018d`.
- [Commits](NixOS/nixpkgs@8110df5...4c1018d)

---
updated-dependencies:
- dependency-name: nixpkgs
  dependency-version: 4c1018dae018162ec878d42fec712642d214fdfa
  dependency-type: direct:production
...

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

Author: dependabot[bot]