Update Node.js version to 22 in workflow

Author: ChristopherRemde

.github/workflows/deploy-github.yml

@@ -37,7 +37,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '22'
           cache: 'npm'
           cache-dependency-path: './docs/package-lock.json'
       - name: Setup Pages