Pin Node 22 in Pages deploy workflow

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X2b2tJP5uUTXJexhi7nKNA

Author: CodeManEthan

.github/workflows/deploy.yml

@@ -18,6 +18,8 @@ jobs:
         uses: actions/checkout@v4
       - name: Install, build, and upload site
         uses: withastro/action@v3
+        with:
+          node-version: 22
 
   deploy:
     needs: build