update workflow versions

.github/workflows/main.yml

@@ -8,10 +8,10 @@ jobs:
   build-nix:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v19
+        uses: cachix/install-nix-action@v25
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
           extra_nix_config: |
@@ -23,7 +23,7 @@ jobs:
             trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
 
       - name: Build with cachix
-        uses: cachix/cachix-action@v12
+        uses: cachix/cachix-action@v14
         with:
           name: hakyll-nix-template
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
@@ -31,7 +31,7 @@ jobs:
       - run: nix build --accept-flake-config
 
       - name: Artifact pages
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: pages
           path: result/dist
@@ -43,14 +43,14 @@ jobs:
 
     steps:
       - name: Download artifact
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
         with:
           name: pages
           path: result
 
       - name: Deploy to GitHub Pages
         if: success()
-        uses: crazy-max/ghaction-github-pages@v3.1.0
+        uses: crazy-max/ghaction-github-pages@v4.0.0
         with:
           build_dir: result
           target_branch: gh-pages