PREQ-5138 authenticate NPM

Author: julien-carsique-sonarsource

.github/workflows/unit-tests.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: github-ubuntu-latest-s
 
     steps:
       - uses: actions/checkout@v5
@@ -18,6 +18,9 @@ jobs:
           node-version: "24"
           cache: "npm"
 
+      - name: Configure NPM with Repox
+        uses: SonarSource/ci-github-actions/config-npm@v1
+
       - name: Install dependencies
         run: npm ci