Potential fix for code scanning alert no. 1681: Workflow does not contain permissions

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

Author: Sam

.github/workflows/flaky.yml

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