chore(deps): bump cachix/install-nix-action from 23 to 24

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 23 to 24.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](cachix/install-nix-action@v23...v24)

---
updated-dependencies:
- dependency-name: cachix/install-nix-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/check-treefmt.yml

@@ -16,7 +16,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@v23
+      - uses: cachix/install-nix-action@v24
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}