Downgrade action version in deploy workflow from v4 to v3

Author: jsanzdev

.github/workflows/deploy.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Checkout your repository using git
         uses: actions/checkout@v4
       - name: Install, build, and upload your site
-        uses: withastro/action@v4
+        uses: withastro/action@v3
         with:
           path: . 
           node-version: 20