Potential fix for code scanning alert no. 2: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: fzipi

.github/workflows/test.yml

@@ -1,6 +1,8 @@
 ---
 name: Regression Tests
 on: [push, pull_request]
+permissions:
+  contents: read
 jobs:
   regression:
     runs-on: ubuntu-latest