chore(deps): update cachix/install-nix-action action to v31

Author: 0x77dev

.github/workflows/nuxthub.yml

@@ -21,7 +21,7 @@ jobs:
         with:
           lfs: true
 
-      - uses: cachix/install-nix-action@v26
+      - uses: cachix/install-nix-action@v31
 
       - uses: nix-community/cache-nix-action@v6
         with: