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: silver6wings

.github/workflows/tests.yml

@@ -1,5 +1,7 @@
 name: Run Tests
 
+permissions:
+  contents: read
 on: [push, pull_request]
 
 jobs: