chore(deps): bump nixpkgs from 2efa67f to a033e66

Bumps [nixpkgs](https://github.com/NixOS/nixpkgs) from `2efa67f` to `a033e66`.
- [Commits](NixOS/nixpkgs@2efa67f...a033e66)

---
updated-dependencies:
- dependency-name: nixpkgs
  dependency-version: a033e66ab94a6bedf2c3d58d93a36319d3cbbbaf
  dependency-type: direct:production
...

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Author: dependabot[bot]