CI: use cachix

Author: berberman

.github/workflows/build.yml

@@ -14,10 +14,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v21
+      - uses: cachix/install-nix-action@v23
         with:
-          extra_nix_config: |
-            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: cachix/cachix-action@v12
+        with:
+          name: fcitx5-android
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
 
       - name: Build site
         run: nix develop --command mkdocs build --site-dir public

.github/workflows/pull_request.yml

@@ -8,7 +8,14 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - uses: cachix/install-nix-action@v21
+      - uses: cachix/install-nix-action@v23
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: cachix/cachix-action@v12
+        with:
+          name: fcitx5-android
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
 
       - name: Build site
         run: nix develop --command mkdocs build --site-dir public