build(deps): bump nix from 0.26.1 to 0.26.2

Bumps [nix](https://github.com/nix-rust/nix) from 0.26.1 to 0.26.2.
- [Release notes](https://github.com/nix-rust/nix/releases)
- [Changelog](https://github.com/nix-rust/nix/blob/v0.26.2/CHANGELOG.md)
- [Commits](https://github.com/nix-rust/nix/compare/v0.26.1...v0.26.2)

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

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

Cargo.lock

@@ -1247,9 +1247,9 @@ dependencies = [
 
 [[package]]
 name = "nix"
-version = "0.26.1"
+version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46a58d1d356c6597d08cde02c2f09d785b09e28711837b1ed667dc652c08a694"
+checksum = "bfdda3d196821d6af13126e40375cdf7da646a96114af134d5f417a9a1dc8e1a"
 dependencies = [
  "bitflags",
  "cfg-if",