Dependabot(deps): Bump cachix/install-nix-action from 14 to 16 (#374)

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 14 to 16.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](https://github.com/cachix/install-nix-action/compare/v14...v16)

---
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/cron-flakes.yml

@@ -30,7 +30,7 @@ jobs:
         fetch-depth: 0
 
     - name: Installing Nix
-      uses: cachix/install-nix-action@v14
+      uses: cachix/install-nix-action@v16
       with:
         install_url: https://nixos-nix-install-tests.cachix.org/serve/i6laym9jw3wg9mw6ncyrk6gjx4l34vvx/install
         install_options: '--tarball-url-prefix https://nixos-nix-install-tests.cachix.org/serve'

.github/workflows/cron-nixpkgs.yml

@@ -32,7 +32,7 @@ jobs:
         fetch-depth: 0
 
     - name: Installing Nix
-      uses: cachix/install-nix-action@v14
+      uses: cachix/install-nix-action@v16
       with:
         install_url: https://nixos-nix-install-tests.cachix.org/serve/i6laym9jw3wg9mw6ncyrk6gjx4l34vvx/install
         install_options: '--tarball-url-prefix https://nixos-nix-install-tests.cachix.org/serve'

.github/workflows/frontend.yml

@@ -14,7 +14,7 @@ jobs:
         fetch-depth: 0
 
     - name: Installing Nix
-      uses: cachix/install-nix-action@v14
+      uses: cachix/install-nix-action@v16
 
     - uses: cachix/cachix-action@v10
       with: