Update gatsby.yml

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

Author: krishnprakash

.github/workflows/gatsby.yml

@@ -65,7 +65,7 @@ jobs:
           # You may remove this line if you want to manage the configuration yourself.
           static_site_generator: gatsby
       - name: Restore cache
-        uses: actions/cache@v6
+        uses: actions/cache@v4
         with:
           path: |
             public