chore: update workflow component

Author: pk5ls20

.github/workflows/check.yml

@@ -38,7 +38,7 @@ jobs:
 
       - name: Save Nix Cache
         if: always()
-        uses: nix-community/cache-nix-action/save@v5
+        uses: nix-community/cache-nix-action/save@v6
         with:
           primary-key: nix-${{ runner.os }}-${{ hashFiles('flake.nix') }}