chore(deps): update cachix/install-nix-action action to v31.8.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
cachix/install-nix-action	action	patch	v31.8.2 -> v31.8.4

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Release Notes

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

v31.8.4

Compare Source

What's Changed

• nix: 2.32.3 -> 2.32.4 by @​github-actions[bot] in #​261

Full Changelog: cachix/install-nix-action@v31.8.3...v31.8.4

v31.8.3

Compare Source

What's Changed

• nix: 2.32.2 -> 2.32.3 by @​github-actions[bot] in #​260

Full Changelog: cachix/install-nix-action@v31.8.2...v31.8.3

---

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.

[mergify]

This pull request has been removed from the queue for the following reason: checks failed.

The merge conditions cannot be satisfied due to failing checks:

• ❌ deploy/netlify

You can check the last failing draft PR here: #2362.

You may have to fix your CI before adding the pull request to the queue again.
If you update this pull request, to fix the CI, it will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue instead, you can requeue the pull request, without updating it, by posting a @mergifyio requeue comment.