Added caching restore and save action

.gitea/workflows/web-deploy.yaml

@@ -4,17 +4,30 @@ on: [push, merge]
 
 jobs:
   setup-nixos-runner:
-    run-on: ubuntu-latest    
+    run-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      
       - uses: webfactory/ssh-agent@v0.9.0
         with:
           ssh-private-key: ${{ secrets.WEB_PROXY_SSH_PRIVATE_KEY }}
       - uses: cachix/install-nix-action@v31
-      - uses: actions/cache@v4
-        with:
-          path: /nix/store
+      
       - name: Ensure known host name
         run: ssh-keyscan ${{ vars.WEB_PROXY_IP }} >> ~/.ssh/known_hosts
+      
+      - name: Restore Cache Nix Store
+        id: nix-cache-restore
+        uses: actions/cache/restore@v4
+        with:
+          path: /nix/store
+          key: ${{ runner.os }}-web-proxy-nix-store
+
       - name: Apply Nix build to Web Proxy host
-        run: nix-shell shell.nix --run "nixos-rebuild switch --no-flake --target-host ${{ vars.WEB_PROXY_TARGET_HOST }}" 
+        run: nix-shell shell.nix --run "nixos-rebuild switch --no-flake --target-host ${{ vars.WEB_PROXY_TARGET_HOST }}"
+      
+      - name: Save Cache Nix Store
+        uses: actions/cache/save@v4
+        with:
+          path: /nix/store
+          key: ${{ steps.nix-cache-restore.outputs.cache-primary-key }}