chore(deps): bump nixpkgs from 4100e83 to ffa10e2 (#33)

Bumps [nixpkgs](https://github.com/NixOS/nixpkgs) from `4100e83` to `ffa10e2`.
- [Commits](NixOS/nixpkgs@4100e83...ffa10e2)

---
updated-dependencies:
- dependency-name: nixpkgs
  dependency-version: ffa10e26ae11d676b2db836259889f1f571cb14f
  dependency-type: direct:production
...

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Co-authored-by: Jonathan D.A. Jewell <6759885+hyperpolymath@users.noreply.github.com>

Author: dependabot[bot]