beta_deploy: have astro build use node 22

Author: nbogie

.github/workflows/beta_deploy.yml

@@ -26,6 +26,8 @@ jobs:
         env:
           NODE_OPTIONS: "--max_old_space_size=4096"
         uses: withastro/action@v2
+        with:
+          node-version: 22
 
       - name: Deploy to Netlify
         uses: nwtgck/actions-netlify@v3.0