Potential fix for code scanning alert no. 13: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
Signed-off-by: mr. m  <91018726+mauro-balades@users.noreply.github.com>

.github/workflows/twilight-release-schedule.yml

@@ -27,6 +27,8 @@ jobs:
     name: Post Build
     runs-on: ubuntu-latest
     needs: twilight-release-schedule
+    permissions:
+      contents: read
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4