build(ci): add github registry config

Signed-off-by: Ruben Romero Montes <[email protected]>

Author: ruromero

.github/workflows/pr-validation.yml

@@ -27,6 +27,12 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 20
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Create .npmrc
+        run: |
+          echo "@trustification:registry=https://npm.pkg.github.com" > .npmrc
 
       - name: Install commitlint
         run: |