Potential fix for code scanning alert no. 4: Workflow does not contain permissions

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

Author: chgeo

.github/workflows/test.yaml

@@ -9,6 +9,8 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
 jobs:
   tests:
     runs-on: ubuntu-latest