chore(deps): Bump cachix/install-nix-action from V28 to 30 (#66)

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from V28 to 30. This release includes the previously tagged commit.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](cachix/install-nix-action@V28...v30)

---
updated-dependencies:
- dependency-name: cachix/install-nix-action
  dependency-type: direct:production
...

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

Author: dependabot[bot]

.github/workflows/prettier.yml

@@ -14,7 +14,7 @@ jobs:
               uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4
 
             - name: Install the Nix package manager
-              uses: cachix/install-nix-action@V28
+              uses: cachix/install-nix-action@v30
 
             - name: Checks
               run: nix run nixpkgs#nodePackages.prettier -- --check .