Update .forgejo/workflows/build.yaml

.forgejo/workflows/build.yaml

@@ -15,12 +15,8 @@ jobs:
       run: apt update && apt -y install sudo
     - uses: actions/checkout@v4
     - name: Install Nix
-      uses: https://github.com/cachix/install-nix-action@v27
-      with:
-        nix_path: nixpkgs=channel:nixos-unstable
-      #   # Mostly to avoid GitHub rate limiting
-      #   extra_nix_config: |
-      #     access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-      #   # Note: this would only work if Cargo is included in the Nix shell
+      uses: DeterminateSystems/nix-installer-action@v12
+    - name: Run the Magic Nix Cache
+      uses: DeterminateSystems/magic-nix-cache-action@v7
     - name: Build release
       run: nix build .#container --impure