Update .github/workflows/main.yml

.github/workflows/main.yml

@@ -15,13 +15,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
       - name: Install nix
-        run: |
-          sudo mkdir -p /nix /etc/nix
-          sudo chmod a+rwx /nix
-          sudo sh -c "echo 'sandbox = false' > /etc/nix/nix.conf"
-          sh <(curl -L https://nixos.org/nix/install) --no-daemon
-          mkdir -p /home/runner/.config/nix/
-          echo 'experimental-features = nix-command flakes' > /home/runner/.config/nix/nix.conf
+        uses: cachix/install-nix-action@v23
       - name: Update flake.lock
         uses: DeterminateSystems/update-flake-lock@v16
         with: