deps: bump nix from 0.31.2 to 0.31.3 (#42)

Bumps [nix](https://github.com/nix-rust/nix) from 0.31.2 to 0.31.3.
- [Changelog](https://github.com/nix-rust/nix/blob/master/CHANGELOG.md)
- [Commits](nix-rust/nix@v0.31.2...v0.31.3)

---
updated-dependencies:
- dependency-name: nix
  dependency-version: 0.31.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]