Bump workflows/nix.yml a bit

Author: andreabedini

.github/workflows/nix.yml

@@ -12,18 +12,18 @@ jobs:
       - ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
-      - uses: cachix/install-nix-action@v20
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v4
         with:
-          extra_nix_config: |
-            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: DeterminateSystems/magic-nix-cache-action@v2
 
       - uses: cachix/cachix-action@v12
         with:
            name: foliage
            authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
 
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
-
       - run: nix build --accept-flake-config