Add packages:read to Pages Action

Author: grega

.github/workflows/pages.yml

@@ -9,6 +9,7 @@ permissions:
   contents: read
   pages: write
   id-token: write
+  packages: read
 
 concurrency:
   group: "pages"
@@ -26,6 +27,11 @@ jobs:
         with:
           node-version: 22
 
+      - name: Configure npm for GitHub Packages
+        run: |
+          echo "@raspberrypifoundation:registry=https://npm.pkg.github.com" >> ~/.npmrc
+          echo "//npm.pkg.github.com/:_authToken=${{ secrets.GITHUB_TOKEN }}" >> ~/.npmrc
+
       - name: Install dependencies
         working-directory: docs
         run: npm ci