Bump cachix/install-nix-action from 24 to 25 (#23)

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 24 to 25.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](cachix/install-nix-action@v24...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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
       - name: Install Nix
-        uses: cachix/install-nix-action@v24
+        uses: cachix/install-nix-action@v25
       - name: Setup Cachix
         uses: cachix/cachix-action@v14
         with:
@@ -41,7 +41,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
       - name: Install Nix
-        uses: cachix/install-nix-action@v24
+        uses: cachix/install-nix-action@v25
       - name: Replace inputs on templates
         run: sed -i 's/github:stackbuilders\/nixpkgs-terraform/github:stackbuilders\/nixpkgs-terraform\/${{ github.sha }}/g' templates/*/flake.nix
       - name: Create a temporary directory