ci: use npm install + node 22 to avoid npm ci lockfile strictness

The lockfile has a transitive picomatch version mismatch that npm 10.8
(shipped with Node 20) refuses under npm ci. Newer npm on Node 22 plus
plain npm install is tolerant and matches what local dev uses.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: mojtabakarimi

.github/workflows/pages.yml

@@ -21,9 +21,9 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-node@v5
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
-      - run: npm ci
+      - run: npm install --no-audit --no-fund
       - run: npm run build
       - uses: actions/configure-pages@v5
       - uses: actions/upload-pages-artifact@v3