Fixed the typo in the workflow

Author: jhonkeithman123

.github/workflows/deploy.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions.checkout@v4
+        uses: actions/checkout@v4
 
       - name: Setup Pages
         uses: actions/configure-pages@v5