fix: Update github deploy action version and config (#37)

Author: nadunindunil

.github/workflows/deploy.yml

@@ -32,7 +32,7 @@ jobs:
         run: npm run build
 
       - name: Deploy to gh-pages
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
-          deploy_key: ${{ secrets.ACTIONS_DEPLOY_KEY }}
+          github_token: ${{ secrets.ACTIONS_DEPLOY_KEY }}
           publish_dir: ./build