Upgrade cache version

.gitea/workflows/build-pi-img.yml

@@ -24,7 +24,7 @@ jobs:
         run: sed -i '/^access-tokens/d' /etc/nix/nix.conf
 
       - name: Cache Nix store
-        uses: actions/cache@v3.0.8
+        uses: actions/cache@v3.3.1
         id: nix-cache
         with:
           path: /tmp/nixcache
@@ -39,7 +39,9 @@ jobs:
 
       - name: Build image
         run: nix-build '<nixpkgs/nixos>' -A config.system.build.sdImage -I nixos-config=./pi-imgs/pi-initial.nix --argstr system aarch64-linux
-      - uses: https://github.com/actions/upload-artifact@v3.1.2
+        
+      - name: Upload img file
+        uses: https://github.com/actions/upload-artifact@v3.1.2
         with:
           path: result/sd-image/*.img