ci: correct action name

Signed-off-by: Sgiath <[email protected]>

Author: Sgiath

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Nix cache
         uses: DeterminateSystems/magic-nix-cache-action@main
 
-      - name: Nix cache
+      - name: Nix store cache
         uses: actions/cache@v4
         with:
           key: nix-store