build(deps): bump cachix/install-nix-action from 22 to 25

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 22 to 25.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](cachix/install-nix-action@v22...v25)

---
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/prettier.yml

@@ -16,7 +16,7 @@ jobs:
               uses: actions/checkout@v4
 
             - name: Install the Nix package manager
-              uses: cachix/install-nix-action@v22
+              uses: cachix/install-nix-action@v25
 
             - name: Checks
               run: nix run nixpkgs#nodePackages.prettier -- --check .