chore(deps): update cachix/install-nix-action action to v31.6.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
cachix/install-nix-action	action	minor	v31.5.2 -> v31.6.0

---

Release Notes

cachix/install-nix-action (cachix/install-nix-action)

v31.6.0

Compare Source

What's Changed

• chore(deps): bump actions/checkout from 4 to 5 by @​dependabot[bot] in #​249
• docs: add example for nix develop by @​jennydaman in #​248
• nix: 2.30.2 -> 2.31.0 by @​github-actions[bot] in #​250
  Release notes: https://discourse.nixos.org/t/nix-2-31-0-released/68465

New Contributors

• @​jennydaman made their first contribution in #​248

Full Changelog: cachix/install-nix-action@v31.5.2...v31.6.0

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.