live: cache full ISO

Author: nzbr

.github/workflows/on_iso.yml

@@ -16,19 +16,14 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Build toplevel ❄️
+      - name: Build ISO 💿
         uses: nzbr/actions/nix-build@main
         with:
-          expression: .#nixosConfigurations.live.config.system.build.toplevel
+          expression: .#nixosConfigurations.live.config.system.build.isoImage
           cache: true
           cache-tag: live-iso
           secret-key: ${{ secrets.SECRET_DECRYPTION_KEY }}
 
-      - name: Build ISO 💿
-        uses: nzbr/actions/nix-build@main
-        with:
-          expression: .#nixosConfigurations.live.config.system.build.isoImage
-
       - name: Upload ISO 📤
         uses: actions/upload-artifact@v4
         with: