Potential fix for code scanning alert no. 1: 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/check-candidate-release.yml

@@ -5,6 +5,9 @@ on:
     - cron: '59 4 * * 2'
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   check_candidates:
     runs-on: ubuntu-latest